Render+Asset: Fix derived Renderer2D, fix Skybox uniform

(address sanitizer, undefined behavior sanitizer)

CMakeLists.txt

@@ -11,6 +11,7 @@ endif()
 # Options
 option(BUILD_SHARED_LIBS "Build shared libraries" OFF)
 option(INFERNO_BUILD_EXAMPLES "Build the Inferno example programs" ${INFERNO_STANDALONE})
+option(INFERNO_BUILD_WARNINGS "Build with warnings enabled" ${INFERNO_STANDALONE})
 
 # ------------------------------------------
 
@@ -25,10 +26,15 @@ set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_CXX_EXTENSIONS OFF)
 
 # Compiler flags used for all build types
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -Wpedantic")
+set(COMPILE_FLAGS_DEPS -w)
-# -Wall      = All warnings about contructions that are easily avoidable
+if(INFERNO_BUILD_WARNINGS)
-# -Wextra    = Extra warning flags not covered by -Wall
+	set(COMPILE_FLAGS_PROJECT -Wall -Wextra -Wpedantic)
-# -Wpedantic = Warnings for compiler extensions not part of the standard
+	# -Wall      = All warnings about contructions that are easily avoidable
+	# -Wextra    = Extra warning flags not covered by -Wall
+	# -Wpedantic = Warnings for compiler extensions not part of the standard
+else()
+	set(COMPILE_FLAGS_PROJECT ${COMPILE_FLAGS_DEPS})
+endif()
 
 # Set default build type if not specified
 set(DEFAULT_BUILD_TYPE Release)
@@ -42,14 +48,20 @@ endif()
 # Set build type specific compiler flags
 message("--- ${CMAKE_BUILD_TYPE} ---")
 if(${CMAKE_BUILD_TYPE} STREQUAL Debug)
-	set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -Og -g -pg")
+	# Optimizations that do not interfere with debugging
-	# -Og = Optimizations that do not interfere with debugging
+	string(APPEND CMAKE_CXX_FLAGS_DEBUG " -Og")
-	# -g  = Produce debugging information in OS's native format
+	# Produce debugging information in OS's native format
-	# -pg = Generate profile information for analysis with gprof
+	string(APPEND CMAKE_CXX_FLAGS_DEBUG " -g")
+	# Generate profile information for analysis with gprof
 	# $ gprof <PROJECT> gmon.out > profile-data.txt
+	string(APPEND CMAKE_CXX_FLAGS_DEBUG " -pg")
+	# Enable ASan (Address Sanitizer) and UBSan (Undefined Behavior Sanitizer)
+	string(APPEND CMAKE_CXX_FLAGS_DEBUG " -fsanitize=address,undefined")
+	# Do not omit frame pointer, which helps with debugging.
+	string(APPEND CMAKE_CXX_FLAGS_DEBUG " -fno-omit-frame-pointer")
 elseif(${CMAKE_BUILD_TYPE} STREQUAL Release)
-	set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O3")
+	# Optimizations that increase compilation time and performance
-	# -O3 = Optimizations that increase compilation time and performance
+	string(APPEND CMAKE_CXX_FLAGS_RELEASE " -O3")
 endif()
 
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)

assets/glsl/batch-cubemap.vert

@@ -8,7 +8,7 @@ out vec4 v_color;
 out vec3 v_textureCoordinates;
 out flat uint v_textureIndex;
 
-uniform mat4 u_projectionView2;
+uniform mat4 u_projectionView;
 
 void main()
 {
@@ -16,5 +16,5 @@ void main()
 	v_textureCoordinates = a_position;
 	v_textureIndex = a_textureIndex;
 	// Vclip = Camera projection * Camera view * Model transform * Vlocal
-	gl_Position = u_projectionView2 * vec4(a_position, 1.0f);
+	gl_Position = u_projectionView * vec4(a_position, 1.0f);
 }

assets/glsl/lightsource.frag

@@ -10,5 +10,8 @@ uniform samplerCube u_textures[32];
 
 void main()
 {
+	// Prevent u_textures variable from getting optimized away
+	if (texture(u_textures[0], vec3(0.0f)).x > 99999.0f) { discard; }
+
 	color = v_color;
 }

assets/glsl/post-process.frag

@@ -25,8 +25,8 @@ struct DirectionalLight {
 	vec3 specular;
 };
 
-const int MAX_DIRECTIONAL_LIGHTS = 32;
+const int MAX_DIRECTIONAL_LIGHTS = 4;
-layout(std140, binding = 1) uniform DirectionalLights {
+layout(std430, binding = 0) buffer DirectionalLights {
 	DirectionalLight u_directionalLight[MAX_DIRECTIONAL_LIGHTS];
 };
 

doc/README.org

@@ -0,0 +1,9 @@
+#+TITLE: Documentation
+#+AUTHOR: Riyyi
+#+LANGUAGE: en
+#+OPTIONS: toc:nil
+
+Topics:
+
+- [[./shaders.org][Shaders]]
+- [[./references.org][References]]

doc/memory-layout.org

@@ -0,0 +1,326 @@
+#+TITLE: Memory Layout
+#+AUTHOR: Riyyi
+#+LANGUAGE: en
+#+OPTIONS: toc:nil
+
+This chapter is about the memory layout of interface blocks in GLSL.
+An interface block is a group of variables, a struct if you will.
+
+There are 4 types of memory layouts that can be used, where the first two aren't
+widely used as those are implementation dependent and require querying the
+OpenGL API for memory offsets.
+
+- packed
+- shared
+- std140
+- std430
+
+** std140
+
+This type is usable in Uniform Buffer Objects (=UBO=) and Shader Storage Buffer
+Objects (=SSBO=).
+
+** std430
+
+This type is only usable in Shader Storage Buffer Objects (=SSBO=).
+
+Main points:
+- Memory is organized into chunks.
+- One chunk has 4 slots, 4 bytes per slot.
+- Can't fit? Move to next chunk.
+- An interface block is at least the size of 1 chunk.
+
+The rules:
+
+- Scalar =bool=, =int=, =uint=, =float=, and =double=
+
+#+BEGIN_SRC
+Both the size and alignment are the size of the scalar in basic machine types
+(e.g., sizeof(GLfloat))
+#+END_SRC
+
+- Two-componment Vectors (e.g., =ivec2=)
+
+#+BEGIN_SRC
+Both the size and alignment are twice the size of the underlying scalar type.
+#+END_SRC
+
+- Three-component Vectors (e.g., =vec3=) and Four-component Vectors (e.g., =vec4=)
+
+#+BEGIN_SRC
+Both the size and alignment are four times the size of the scalar type. However,
+this is only true when the member is part of an array or nested structure
+#+END_SRC
+
+- Array of Scalars and Vectors
+
+#+BEGIN_SRC
+The size of each element in the array will be the same size of the element type,
+where three-component vectors are rounded up to the size four-component
+vectors. This is also the array's alignment. The array's size will be the
+element size times the number of elements.
+#+END_SRC
+
+- Column-major matrix or an array of column-major matrices of size C columns and R rows
+
+#+BEGIN_SRC
+Same layout as an array of N vectors each with R components, where N is the
+total number of columns present.
+#+END_SRC
+
+- Row-major matrix or an array of row-major matrices of size R rows and C columns
+
+#+BEGIN_SRC
+Same layout as an array of N vectors each with C components, where N is the
+total number of rows present.
+#+END_SRC
+
+Both =GLSL= and the =GLM= math library we're using have column-major matrices!
+
+- Single-structure definition or an array of structures
+
+#+BEGIN_SRC
+Structure alignment is the same as the alignment of the biggest structure
+member, where three-component vectors are rounded up to the size of
+four-component vectors. Each structure will start on this alignment, and its
+size will be the space neeeded by its members, according to the previous rules,
+rounded up to a multiple of the structure alignment.
+#+END_SRC
+
+All of the examples described in the following segments are verified by querying
+the OpenGL API.
+
+*** Scalars
+
+These types take up 1 (or 2 with =double=) slot and can appear after anything.
+In the example below you can see that due to the larger alignment, the ~double~
+is forced to the next chunk.
+
+#+BEGIN_SRC glsl
+//        Var    Size    Alignment    Offset
+bool      a; //   4       4            0
+int       b; //   4       4            4
+uint      c; //   4       4            8
+double    d; //   8       8           16
+float     e; //   4       4           24
+#+END_SRC
+
+#+BEGIN_SRC
+Chunks:
+[a][b][c][ ] #1
+[d][d][e][ ] #2
+#+END_SRC
+
+*** Two-component Vectors
+
+**** Float
+
+A Vec2 takes up 2 slots, so will be in the first or last half of a chunk.
+
+#+BEGIN_SRC glsl
+//        Var    Size    Alignment    Offset
+vec2      a; //   8       8            0
+float     b; //   4       4            8
+#+END_SRC
+
+#+BEGIN_SRC
+Chunks:
+[a][a][b][ ] #1
+#+END_SRC
+
+#+BEGIN_SRC glsl
+//        Var    Size    Alignment    Offset
+float     a; //   4       4            0
+vec2      b; //   8       8            8
+#+END_SRC
+
+#+BEGIN_SRC
+Chunks:
+[a][ ][b][b] #1
+#+END_SRC
+
+**** Double
+
+#+BEGIN_SRC glsl
+//        Var    Size    Alignment    Offset
+float     a; //   4       4            0
+dvec2     b; //  16      16           16
+#+END_SRC
+
+#+BEGIN_SRC
+Chunks:
+[a][ ][ ][ ] #1
+[b][b][b][b] #2
+#+END_SRC
+
+*** Three-component and Four-component Vectors
+
+A Vec3 takes up 3 slots, the alignment is 4 slots so only fits at the start of a
+chunk.
+
+#+BEGIN_SRC glsl
+//        Var    Size    Alignment    Offset
+vec3      a; //  12      16            0
+float     b; //   4       4           12
+vec4      c; //  16      16           16
+#+END_SRC
+
+#+BEGIN_SRC
+Chunks:
+[a][a][a][b] #1
+[c][c][c][c] #2
+#+END_SRC
+
+#+BEGIN_SRC glsl
+//        Var    Size    Alignment    Offset
+float     a; //   4       4            0
+vec3      b; //  12      16           16
+vec4      c; //  16      16           32
+#+END_SRC
+
+#+BEGIN_SRC
+Chunks:
+[a][ ][ ][ ] #1
+[b][b][b][ ] #2
+[c][c][c][c] #3
+#+END_SRC
+
+*** Array of Scalars and Vectors
+
+#+BEGIN_SRC glsl
+//        Var    Size    Alignment    Offset
+float[3]  a; //  12       4            0
+float     b; //   4       4           12
+float     c; //   4       4           16
+float[3]  d; //  12       4           20
+#+END_SRC
+
+#+BEGIN_SRC
+Chunks:
+[a][a][a][b] #1
+[c][d][d][d] #1
+#+END_SRC
+
+*Note* the optimizations in the alignment and strides are not applicable to
+~vec3~ elements, these remain unchanged from =std140=.
+
+#+BEGIN_SRC glsl
+//        Var    Size    Alignment    Offset
+float     a; //   4       4            0
+vec3[3]   b; //  48      16           16
+float     c; //   4       4           64
+float     d; //   4       4           68
+vec2[2]   e; //  16       8           72
+float     f; //   4       4           88
+#+END_SRC
+
+#+BEGIN_SRC
+Chunks:
+[a][ ][ ][ ] #1, offset:  0
+[b][b][b][ ] #2, offset: 16
+[b][b][b][ ] #3, offset: 32
+[b][b][b][ ] #4, offset: 48
+[c][d][e][e] #5, offset: 64
+[e][e][f][ ] #6, offset: 80
+#+END_SRC
+
+*Note* the offset needs to be a multiple of the alignment, forcing an entire
+empty chunk in the example below.
+
+#+BEGIN_SRC glsl
+//        Var    Size    Alignment    Offset
+float     a; //   4       4             0
+dvec2[2]  b; //  32      16            16
+dvec3[2]  c; //  64      32            64
+float     d; //   4       4           128
+#+END_SRC
+
+#+BEGIN_SRC
+Chunks:
+[a][ ][ ][ ] #1, offset:   0
+[d][d][d][d] #2, offset:  16
+[d][d][d][d] #3, offset:  32
+[ ][ ][ ][ ] #4, offset:  48
+[c][c][c][c] #5, offset:  64
+[c][c][ ][ ] #6, offset:  80
+[c][c][c][c] #7, offset:  96
+[c][c][ ][ ] #8, offset: 112
+[d][ ][ ][ ] #9, offset: 128
+#+END_SRC
+
+*** Matrices
+
+Alignment is the same as an array of 1 “row” of the matrix.
+No padding between the “rows” of a matrix, but will pad at the end.
+
+#+BEGIN_SRC glsl
+//        Var    Size    Alignment    Offset
+float     a; //   4       4             0
+mat2      b; //  16       8             8
+vec2      c; //   4       4            24
+float     d; //   4       4            32
+mat2[2]   e; //  32       8            40
+float     f; //   4       4            72
+#+END_SRC
+
+#+BEGIN_SRC
+Chunks:
+[a][ ][b][b] #1, offset:   0
+[b][b][c][c] #2, offset:  16
+[d][ ][e][e] #3, offset:  32
+[e][e][e][e] #4, offset:  48
+[e][e][f][ ] #5, offset:  64
+#+END_SRC
+
+TODO: Add more examples
+
+*** Structs
+
+Alignment same as biggest struct member. Size is the size of all members,
+rounded up to a multiple of the alignment.
+
+In the example below you can see that the ~Stuff~ struct, including padding
+between members, is 20 bytes in size. To make that a multiple of the alignment
+additional padding needs to be put at the end, to make the total size 24 bytes.
+
+Each element in the array of structs will apply the alignment again, as seen
+with ~Stuff[1].a~.
+
+#+BEGIN_SRC glsl
+struct Stuff {
+	float a;
+	vec2 b;
+	float c;
+};
+
+//        Var    Size    Alignment    Offset
+Stuff     a; //  20       8
+        a.a; //   4       4            0
+        a.b; //   8       8            8
+        a.c; //   4       4           16
+float     b; //   4       4           24
+Stuff[2]  c; //  44       8
+        c.a; //   4       4           32
+        c.b; //   8       8           40
+        c.c; //   4       4           48
+float     d; //   4       4           80
+#+END_SRC
+
+#+BEGIN_SRC
+Chunks:
+[a][ ][a][a] #1, offset:   0
+[a][ ][b][ ] #2, offset:  16
+[c][ ][c][c] #3, offset:  32
+[c][ ][c][ ] #4, offset:  48
+[c][c][c][ ] #5, offset:  64
+[d][ ][ ][ ] #6, offset:  80
+#+END_SRC
+
+TODO: Add more examples
+
+* References
+
+- https://learnopengl.com/Advanced-OpenGL/Advanced-GLSL
+- https://www.khronos.org/opengl/wiki/Interface_Block_(GLSL)#Memory_layout
+- [[https://www.oreilly.com/library/view/opengl-programming-guide/9780132748445/app09lev1sec2.html][The std140 Layout Rules]]
+- [[https://www.youtube.com/watch?v=JPvbRko9lBg][(YouTube) WebGL 2: Uniform Buffer Objects]]

doc/references.org

@@ -0,0 +1 @@
+

doc/shaders.org

@@ -0,0 +1,8 @@
+#+TITLE: Shaders
+#+AUTHOR: Riyyi
+#+LANGUAGE: en
+#+OPTIONS: toc:nil
+
+Topics:
+
+- [[./memory-layout.org][Memory Layout]]

example/CMakeLists.txt

@@ -15,6 +15,7 @@ add_executable(${GAME} ${GAME_SOURCES})
 target_include_directories(${GAME} PRIVATE
 	"src")
 target_link_libraries(${GAME} ${ENGINE})
+target_compile_options(${GAME} PRIVATE ${COMPILE_FLAGS_PROJECT})
 
 target_precompile_headers(${GAME} REUSE_FROM ${ENGINE})
 

src/CMakeLists.txt

@@ -10,6 +10,7 @@ target_include_directories(${ENGINE} PUBLIC
 	"../vendor/sol2/include"
 	"../vendor/stb")
 target_link_libraries(${ENGINE} ${ENGINE}-dependencies)
+target_compile_options(${ENGINE} PRIVATE ${COMPILE_FLAGS_PROJECT})
 
 # ------------------------------------------
 

src/inferno/asset/shader.h

@@ -4,6 +4,8 @@
  * SPDX-License-Identifier: MIT
  */
 
+#pragma once
+
 #include <cstdint> // int32_t, uint32_t
 #include <string_view>
 #include <unordered_map>

src/inferno/component/cubemap-component.cpp

@@ -8,7 +8,7 @@
 
 #include "inferno/asset/texture.h"
 #include "inferno/component/cubemap-component.h"
-#include "inferno/component/spritecomponent.h" // TODO: Move glm::x toJson/fromJson to separate file
+#include "inferno/component/serialize.h" // not detected as used by clang-tidy
 
 namespace Inferno {
 

src/inferno/component/model-component.cpp

@@ -8,7 +8,7 @@
 #include "inferno/asset/asset-manager.h"
 #include "inferno/asset/model.h"
 #include "inferno/asset/texture.h"
-#include "inferno/component/spritecomponent.h" // TODO: Move glm::x toJson/fromJson to separate file
+#include "inferno/component/serialize.h" // not detected as used by clang-tidy
 
 namespace Inferno {
 

src/inferno/component/serialize.cpp

@@ -0,0 +1,127 @@
+/*
+ * Copyright (C) 2024 Riyyi
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include "glm/ext/matrix_float2x2.hpp"
+#include "glm/ext/matrix_float3x3.hpp"
+#include "glm/ext/matrix_float4x4.hpp"
+#include "glm/ext/vector_float2.hpp"
+#include "glm/ext/vector_float3.hpp"
+#include "glm/ext/vector_float4.hpp"
+#include "ruc/json/json.h"
+
+#include "inferno/component/serialize.h"
+
+namespace glm {
+
+void toJson(ruc::Json& json, const vec2& value)
+{
+	json = ruc::Json {
+		{ value.x, value.y },
+	};
+}
+
+void fromJson(const ruc::Json& json, vec2& value)
+{
+	VERIFY(json.type() == ruc::Json::Type::Array);
+
+	auto& values = json.asArray();
+	VERIFY(values.size() == 2, "glm::vec2 expected 2 values, got: {}", values.size());
+
+	value.x = values.at(0).get<float>();
+	value.y = values.at(1).get<float>();
+}
+
+// -----------------------------------------
+
+void toJson(ruc::Json& json, const vec3& value)
+{
+	json = ruc::Json {
+		{ value.x, value.y, value.z },
+	};
+}
+
+void fromJson(const ruc::Json& json, vec3& value)
+{
+	VERIFY(json.type() == ruc::Json::Type::Array);
+
+	auto& values = json.asArray();
+	VERIFY(values.size() == 3, "glm::vec3 expected 3 values, got: {}", values.size());
+
+	value.x = values.at(0).get<float>();
+	value.y = values.at(1).get<float>();
+	value.z = values.at(2).get<float>();
+}
+
+// -----------------------------------------
+
+void toJson(ruc::Json& json, const vec4& value)
+{
+	json = ruc::Json {
+		{ value.r, value.g, value.b, value.a },
+	};
+}
+
+void fromJson(const ruc::Json& json, vec4& value)
+{
+	VERIFY(json.type() == ruc::Json::Type::Array);
+
+	auto& values = json.asArray();
+	VERIFY(values.size() == 4, "glm::vec4 expected 4 values, got: {}", values.size());
+
+	value.r = values.at(0).get<float>();
+	value.g = values.at(1).get<float>();
+	value.b = values.at(2).get<float>();
+	value.a = values.at(3).get<float>();
+}
+
+} // namespace glm
+
+// -----------------------------------------
+
+void ruc::format::Formatter<glm::vec2>::format(Builder& builder, glm::vec2 value) const
+{
+	return Formatter<std::vector<float>>::format(builder, { value.x, value.y });
+}
+
+void ruc::format::Formatter<glm::vec3>::format(Builder& builder, glm::vec3 value) const
+{
+	return Formatter<std::vector<float>>::format(builder, { value.x, value.y, value.z });
+}
+
+void ruc::format::Formatter<glm::vec4>::format(Builder& builder, glm::vec4 value) const
+{
+	return Formatter<std::vector<float>>::format(builder, { value.x, value.y, value.z, value.w });
+}
+
+void ruc::format::Formatter<glm::mat2>::format(Builder& builder, glm::mat2 value) const
+{
+	builder.putString("mat2 ");
+	Formatter<glm::vec2>::format(builder, value[0]);
+	builder.putString("\n     ");
+	return Formatter<glm::vec2>::format(builder, value[1]);
+}
+
+void ruc::format::Formatter<glm::mat3>::format(Builder& builder, glm::mat3 value) const
+{
+	builder.putString("mat3 ");
+	Formatter<glm::vec3>::format(builder, value[0]);
+	builder.putString("\n     ");
+	Formatter<glm::vec3>::format(builder, value[1]);
+	builder.putString("\n     ");
+	return Formatter<glm::vec3>::format(builder, value[2]);
+}
+
+void ruc::format::Formatter<glm::mat4>::format(Builder& builder, glm::mat4 value) const
+{
+	builder.putString("mat4 ");
+	Formatter<glm::vec4>::format(builder, value[0]);
+	builder.putString("\n     ");
+	Formatter<glm::vec4>::format(builder, value[1]);
+	builder.putString("\n     ");
+	Formatter<glm::vec4>::format(builder, value[2]);
+	builder.putString("\n     ");
+	return Formatter<glm::vec4>::format(builder, value[3]);
+}

src/inferno/component/serialize.h

@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2024 Riyyi
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#pragma once
+
+#include "glm/ext/matrix_float2x2.hpp"
+#include "glm/ext/matrix_float3x3.hpp"
+#include "glm/ext/matrix_float4x4.hpp"
+#include "glm/ext/vector_float2.hpp"
+#include "glm/ext/vector_float3.hpp"
+#include "glm/ext/vector_float4.hpp"
+#include "ruc/json/json.h"
+
+namespace glm {
+
+void toJson(ruc::Json& json, const vec2& value);
+void fromJson(const ruc::Json& json, vec2& value);
+
+void toJson(ruc::Json& json, const vec3& value);
+void fromJson(const ruc::Json& json, vec3& value);
+
+void toJson(ruc::Json& json, const vec4& value);
+void fromJson(const ruc::Json& json, vec4& value);
+
+} // namespace glm
+
+template<>
+struct ruc::format::Formatter<glm::vec2> : Formatter<std::vector<float>> {
+	void format(Builder& builder, glm::vec2 value) const;
+};
+
+template<>
+struct ruc::format::Formatter<glm::vec3> : Formatter<std::vector<float>> {
+	void format(Builder& builder, glm::vec3 value) const;
+};
+
+template<>
+struct ruc::format::Formatter<glm::vec4> : Formatter<std::vector<float>> {
+	void format(Builder& builder, glm::vec4 value) const;
+};
+
+template<>
+struct ruc::format::Formatter<glm::mat2> : Formatter<glm::vec2> {
+	void format(Builder& builder, glm::mat2 value) const;
+};
+
+template<>
+struct ruc::format::Formatter<glm::mat3> : Formatter<glm::vec3> {
+	void format(Builder& builder, glm::mat3 value) const;
+};
+
+template<>
+struct ruc::format::Formatter<glm::mat4> : Formatter<glm::vec4> {
+	void format(Builder& builder, glm::mat4 value) const;
+};

src/inferno/component/spritecomponent.cpp

@@ -4,9 +4,12 @@
  * SPDX-License-Identifier: MIT
  */
 
-#include "inferno/component/spritecomponent.h"
+#include "ruc/json/json.h"
+
 #include "inferno/asset/asset-manager.h"
 #include "inferno/asset/texture.h"
+#include "inferno/component/serialize.h" // not detected as used by clang-tidy
+#include "inferno/component/spritecomponent.h"
 
 namespace Inferno {
 
@@ -23,27 +26,3 @@ void fromJson(const ruc::Json& json, SpriteComponent& value)
 }
 
 } // namespace Inferno
-
-namespace glm {
-
-void toJson(ruc::Json& json, const vec4& value)
-{
-	json = ruc::Json {
-		{ value.r, value.g, value.b, value.a },
-	};
-}
-
-void fromJson(const ruc::Json& json, vec4& value)
-{
-	VERIFY(json.type() == ruc::Json::Type::Array);
-
-	auto& values = json.asArray();
-	VERIFY(values.size() == 4, "glm::vec4 expects 4 values, not {}", values.size());
-
-	value.r = values.at(0).get<float>();
-	value.g = values.at(1).get<float>();
-	value.b = values.at(2).get<float>();
-	value.a = values.at(3).get<float>();
-}
-
-} // namespace glm

src/inferno/component/spritecomponent.h

@@ -23,10 +23,3 @@ struct SpriteComponent {
 void fromJson(const ruc::Json& json, SpriteComponent& value);
 
 } // namespace Inferno
-
-namespace glm {
-
-void toJson(ruc::Json& json, const vec4& value);
-void fromJson(const ruc::Json& json, vec4& value);
-
-} // namespace glm

src/inferno/component/transformcomponent.cpp

@@ -7,6 +7,7 @@
 #include "ruc/format/format.h"
 #include "ruc/json/json.h"
 
+#include "inferno/component/serialize.h"
 #include "inferno/component/transformcomponent.h"
 
 namespace Inferno {
@@ -28,56 +29,6 @@ void fromJson(const ruc::Json& json, TransformComponent& value)
 
 } // namespace Inferno
 
-namespace glm {
-
-void toJson(ruc::Json& json, const vec3& value)
-{
-	json = ruc::Json {
-		{ value.x, value.y, value.z },
-	};
-}
-
-void fromJson(const ruc::Json& json, vec3& value)
-{
-	VERIFY(json.type() == ruc::Json::Type::Array);
-
-	auto& values = json.asArray();
-	VERIFY(values.size() == 3, "glm::vec3 expects 3 values, not {}", values.size());
-
-	value.x = values.at(0).get<float>();
-	value.y = values.at(1).get<float>();
-	value.z = values.at(2).get<float>();
-}
-
-} // namespace glm
-
-void ruc::format::Formatter<glm::vec2>::format(Builder& builder, glm::vec2 value) const
-{
-	return Formatter<std::vector<float>>::format(builder, { value.x, value.y });
-}
-
-void ruc::format::Formatter<glm::vec3>::format(Builder& builder, glm::vec3 value) const
-{
-	return Formatter<std::vector<float>>::format(builder, { value.x, value.y, value.z });
-}
-
-void ruc::format::Formatter<glm::vec4>::format(Builder& builder, glm::vec4 value) const
-{
-	return Formatter<std::vector<float>>::format(builder, { value.x, value.y, value.z, value.w });
-}
-
-void ruc::format::Formatter<glm::mat4>::format(Builder& builder, glm::mat4 value) const
-{
-	builder.putString("mat4 ");
-	Formatter<glm::vec4>::format(builder, value[0]);
-	builder.putString("\n     ");
-	Formatter<glm::vec4>::format(builder, value[1]);
-	builder.putString("\n     ");
-	Formatter<glm::vec4>::format(builder, value[2]);
-	builder.putString("\n     ");
-	return Formatter<glm::vec4>::format(builder, value[3]);
-}
-
 void ruc::format::Formatter<Inferno::TransformComponent>::format(Builder& builder, Inferno::TransformComponent value) const
 {
 	builder.putString("transform ");

src/inferno/component/transformcomponent.h

@@ -6,9 +6,6 @@
 
 #pragma once
 
-#include <cstdint> // uint32_t
-#include <optional>
-
 #include "entt/entity/entity.hpp"      // entt::null
 #include "entt/entity/fwd.hpp"         // entt::entity
 #include "glm/ext/matrix_float4x4.hpp" // glm::mat4
@@ -31,33 +28,6 @@ void fromJson(const ruc::Json& json, TransformComponent& value);
 
 } // namespace Inferno
 
-namespace glm {
-
-void toJson(ruc::Json& json, const vec3& value);
-void fromJson(const ruc::Json& json, vec3& value);
-
-} // namespace glm
-
-template<>
-struct ruc::format::Formatter<glm::vec2> : Formatter<std::vector<float>> {
-	void format(Builder& builder, glm::vec2 value) const;
-};
-
-template<>
-struct ruc::format::Formatter<glm::vec3> : Formatter<std::vector<float>> {
-	void format(Builder& builder, glm::vec3 value) const;
-};
-
-template<>
-struct ruc::format::Formatter<glm::vec4> : Formatter<std::vector<float>> {
-	void format(Builder& builder, glm::vec4 value) const;
-};
-
-template<>
-struct ruc::format::Formatter<glm::mat4> : Formatter<glm::vec4> {
-	void format(Builder& builder, glm::mat4 value) const;
-};
-
 template<>
 struct ruc::format::Formatter<Inferno::TransformComponent> : Formatter<glm::vec3> {
 	void format(Builder& builder, Inferno::TransformComponent value) const;

src/inferno/render/buffer.cpp

@@ -42,7 +42,7 @@ uint32_t BufferElement::getTypeGL() const
 	return BufferElement::getTypeGL(m_type);
 }
 
-uint32_t BufferElement::getTypeSize(const BufferElementType type)
+uint32_t BufferElement::getTypeSize(BufferElementType type)
 {
 	switch (type) {
 	case BufferElementType::None:
@@ -86,7 +86,7 @@ uint32_t BufferElement::getTypeSize(const BufferElementType type)
 	return 0;
 }
 
-uint32_t BufferElement::getTypeCount(const BufferElementType type)
+uint32_t BufferElement::getTypeCount(BufferElementType type)
 {
 	switch (type) {
 	case BufferElementType::None:
@@ -133,7 +133,7 @@ uint32_t BufferElement::getTypeCount(const BufferElementType type)
 	return 0;
 }
 
-uint32_t BufferElement::getTypeGL(const BufferElementType type)
+uint32_t BufferElement::getTypeGL(BufferElementType type)
 {
 	switch (type) {
 	case BufferElementType::None:
@@ -177,6 +177,58 @@ uint32_t BufferElement::getTypeGL(const BufferElementType type)
 	return 0;
 }
 
+uint32_t BufferElement::getGLTypeSize(uint32_t type)
+{
+	switch (type) {
+	case GL_BOOL:
+	case GL_INT:
+	case GL_UNSIGNED_INT:
+	case GL_FLOAT:
+		return 4;
+	case GL_BOOL_VEC2:
+	case GL_INT_VEC2:
+	case GL_UNSIGNED_INT_VEC2:
+	case GL_FLOAT_VEC2:
+		return 4 * 2;
+	case GL_BOOL_VEC3:
+	case GL_INT_VEC3:
+	case GL_UNSIGNED_INT_VEC3:
+	case GL_FLOAT_VEC3:
+		return 4 * 3;
+	case GL_BOOL_VEC4:
+	case GL_INT_VEC4:
+	case GL_UNSIGNED_INT_VEC4:
+	case GL_FLOAT_VEC4:
+		return 4 * 4;
+	case GL_FLOAT_MAT2:
+		return 4 * 2 * 2;
+	case GL_FLOAT_MAT3:
+		return 4 * 3 * 3;
+	case GL_FLOAT_MAT4:
+		return 4 * 4 * 4;
+
+	case GL_DOUBLE:
+		return 8;
+	case GL_DOUBLE_VEC2:
+		return 8 * 2;
+	case GL_DOUBLE_VEC3:
+		return 8 * 3;
+	case GL_DOUBLE_VEC4:
+		return 8 * 4;
+	case GL_DOUBLE_MAT2:
+		return 8 * 2 * 2;
+	case GL_DOUBLE_MAT3:
+		return 8 * 3 * 3;
+	case GL_DOUBLE_MAT4:
+		return 8 * 4 * 4;
+
+	default:
+		VERIFY_NOT_REACHED();
+	};
+
+	return 0;
+}
+
 // -----------------------------------------
 
 BufferLayout::BufferLayout(const std::initializer_list<BufferElement>& elements)
@@ -372,10 +424,11 @@ void VertexArray::addVertexBuffer(std::shared_ptr<VertexBuffer> vertexBuffer)
 
 		index++;
 	}
-	m_vertexBuffers.push_back(std::move(vertexBuffer));
 
 	unbind();
 	vertexBuffer->unbind();
+
+	m_vertexBuffers.push_back(std::move(vertexBuffer));
 }
 
 void VertexArray::setIndexBuffer(std::shared_ptr<IndexBuffer> indexBuffer)
@@ -383,10 +436,10 @@ void VertexArray::setIndexBuffer(std::shared_ptr<IndexBuffer> indexBuffer)
 	bind();
 	indexBuffer->bind();
 
-	m_indexBuffer = std::move(indexBuffer);
-
 	unbind();
 	indexBuffer->unbind();
+
+	m_indexBuffer = std::move(indexBuffer);
 }
 
 } // namespace Inferno

src/inferno/render/buffer.h

@@ -16,7 +16,7 @@ namespace Inferno {
 
 // clang-format off
 // https://www.khronos.org/opengl/wiki/Data_Type_(GLSL)
-enum class BufferElementType {
+enum class BufferElementType : uint8_t {
 	None = 0,
 	Bool, Bool2, Bool3, Bool4,                      // bvec
 	Int, Int2, Int3, Int4,                          // ivec
@@ -39,9 +39,10 @@ public:
 	uint32_t getTypeSize() const;
 	uint32_t getTypeCount() const;
 	uint32_t getTypeGL() const;
-	static uint32_t getTypeSize(const BufferElementType type);
+	static uint32_t getTypeSize(BufferElementType type);
-	static uint32_t getTypeCount(const BufferElementType type);
+	static uint32_t getTypeCount(BufferElementType type);
-	static uint32_t getTypeGL(const BufferElementType type);
+	static uint32_t getTypeGL(BufferElementType type);
+	static uint32_t getGLTypeSize(uint32_t type);
 
 	BufferElementType type() const { return m_type; }
 	std::string name() const { return m_name; }
@@ -49,11 +50,11 @@ public:
 	uint32_t offset() const { return m_offset; }
 	bool normalized() const { return m_normalized; }
 
-	void setType(const BufferElementType& type) { m_type = type; }
+	void setType(BufferElementType type) { m_type = type; }
 	void setName(const std::string& name) { m_name = name; }
-	void setSize(const uint32_t& size) { m_size = size; }
+	void setSize(uint32_t size) { m_size = size; }
-	void setOffset(const uint32_t& offset) { m_offset = offset; }
+	void setOffset(uint32_t offset) { m_offset = offset; }
-	void setNormalized(const bool& normalized) { m_normalized = normalized; }
+	void setNormalized(bool normalized) { m_normalized = normalized; }
 
 private:
 	BufferElementType m_type;

src/inferno/render/renderer.cpp

@@ -34,9 +34,6 @@ void Renderer<T>::endScene()
 
 // -----------------------------------------
 
-template<typename T>
-uint32_t Renderer<T>::m_maxSupportedTextureSlots = 0;
-
 template<typename T>
 void Renderer<T>::initialize()
 {
@@ -68,7 +65,6 @@ void Renderer<T>::initialize()
 template<typename T>
 void Renderer<T>::destroy()
 {
-	delete[] m_vertexBufferBase;
 }
 
 template<typename T>
@@ -164,7 +160,7 @@ void Renderer<T>::flush()
 	uploadElementBuffer();
 
 	// Upload vertex data to GPU
-	m_vertexArray->at(0)->uploadData(m_vertexBufferBase, m_vertexIndex * sizeof(T));
+	m_vertexArray->at(0)->uploadData(m_vertexBufferBase.get(), m_vertexIndex * sizeof(T));
 
 	bind();
 
@@ -183,7 +179,7 @@ void Renderer<T>::startBatch()
 {
 	m_vertexIndex = 0;
 	m_elementIndex = 0;
-	m_vertexBufferPtr = m_vertexBufferBase;
+	m_vertexBufferPtr = m_vertexBufferBase.get();
 
 	m_textureSlotIndex = 1;
 }
@@ -202,6 +198,10 @@ Renderer2D::Renderer2D(s)
 	Renderer2D::initialize();
 }
 
+Renderer2D::~Renderer2D()
+{
+}
+
 void Renderer2D::initialize()
 {
 	Renderer::initialize();
@@ -210,8 +210,8 @@ void Renderer2D::initialize()
 	// CPU
 
 	// Create array for storing quads vertices
-	m_vertexBufferBase = new QuadVertex[maxVertices];
+	m_vertexBufferBase = std::make_unique<QuadVertex[]>(maxVertices);
-	m_vertexBufferPtr = m_vertexBufferBase;
+	m_vertexBufferPtr = m_vertexBufferBase.get();
 
 	// Set default quad vertex positions
 	m_vertexPositions[0] = { -1.0f, -1.0f, 0.0f, 1.0f };
@@ -283,7 +283,7 @@ void Renderer2D::drawQuad(const TransformComponent& transform, glm::mat4 color,
 
 void Renderer2D::loadShader()
 {
-	m_shader = AssetManager::the().load<Shader>("assets/glsl/post-process");
+	m_shader = AssetManager::the().load<Shader>("assets/glsl/batch-2d");
 }
 
 // -----------------------------------------
@@ -293,6 +293,10 @@ RendererCubemap::RendererCubemap(s)
 	RendererCubemap::initialize();
 }
 
+RendererCubemap::~RendererCubemap()
+{
+}
+
 void RendererCubemap::initialize()
 {
 	Renderer::initialize();
@@ -301,8 +305,8 @@ void RendererCubemap::initialize()
 	// CPU
 
 	// Create array for storing quads vertices
-	m_vertexBufferBase = new CubemapVertex[maxVertices];
+	m_vertexBufferBase = std::make_unique<CubemapVertex[]>(maxVertices);
-	m_vertexBufferPtr = m_vertexBufferBase;
+	m_vertexBufferPtr = m_vertexBufferBase.get();
 
 	// Set default cubemap vertex positions
 
@@ -367,10 +371,10 @@ void RendererCubemap::beginScene(glm::mat4 cameraProjection, glm::mat4 cameraVie
 	// x x x 0
 	// x x x 0
 	// 0 0 0 1
-	// cameraView = glm::mat4(glm::mat3(cameraView));
+	cameraView = glm::mat4(glm::mat3(cameraView));
 
 	m_shader->bind();
-	m_shader->setFloat("u_projectionView2", cameraProjection * cameraView);
+	m_shader->setFloat("u_projectionView", cameraProjection * cameraView);
 	m_shader->unbind();
 }
 
@@ -416,8 +420,8 @@ RendererFont::RendererFont(s)
 	// CPU
 
 	// Create array for storing quads vertices
-	m_vertexBufferBase = new SymbolVertex[maxVertices];
+	m_vertexBufferBase = std::make_unique<SymbolVertex[]>(maxVertices);
-	m_vertexBufferPtr = m_vertexBufferBase;
+	m_vertexBufferPtr = m_vertexBufferBase.get();
 
 	// ---------------------------------
 	// GPU
@@ -443,6 +447,10 @@ RendererFont::RendererFont(s)
 	ruc::info("RendererFont initialized");
 }
 
+RendererFont::~RendererFont()
+{
+}
+
 void RendererFont::drawSymbol(std::array<SymbolVertex, vertexPerQuad>& symbolQuad, std::shared_ptr<Texture> texture)
 {
 	// Create a new batch if the quad limit has been reached
@@ -488,8 +496,8 @@ Renderer3D::Renderer3D(s)
 	// CPU
 
 	// Create array for storing quads vertices
-	m_vertexBufferBase = new Vertex[maxVertices];
+	m_vertexBufferBase = std::make_unique<Vertex[]>(maxVertices);
-	m_vertexBufferPtr = m_vertexBufferBase;
+	m_vertexBufferPtr = m_vertexBufferBase.get();
 
 	// ---------------------------------
 	// GPU
@@ -511,6 +519,10 @@ Renderer3D::Renderer3D(s)
 	ruc::info("Renderer3D initialized");
 }
 
+Renderer3D::~Renderer3D()
+{
+}
+
 void Renderer3D::drawModel(std::span<const Vertex> vertices, std::span<const uint32_t> elements, const TransformComponent& transform, glm::vec4 color, std::shared_ptr<Texture> texture)
 {
 	// ruc::error("drawModel");
@@ -553,20 +565,20 @@ void Renderer3D::createElementBuffer()
 	// CPU
 
 	// Create array for storing quads vertices
-	m_elementBufferBase = new uint32_t[maxElements];
+	m_elementBufferBase = std::make_unique<uint32_t[]>(maxElements);
-	m_elementBufferPtr = m_elementBufferBase;
+	m_elementBufferPtr = m_elementBufferBase.get();
 
 	// ---------------------------------
 	// GPU
 
 	// Create index buffer
-	auto indexBuffer = std::make_shared<IndexBuffer>(m_elementBufferBase, sizeof(uint32_t) * maxElements);
+	auto indexBuffer = std::make_shared<IndexBuffer>(m_elementBufferBase.get(), sizeof(uint32_t) * maxElements);
 	m_vertexArray->setIndexBuffer(indexBuffer);
 }
 
 void Renderer3D::uploadElementBuffer()
 {
-	m_vertexArray->indexBuffer()->uploadData(m_elementBufferBase, m_elementIndex * sizeof(uint32_t));
+	m_vertexArray->indexBuffer()->uploadData(m_elementBufferBase.get(), m_elementIndex * sizeof(uint32_t));
 }
 
 void Renderer3D::loadShader()
@@ -577,11 +589,22 @@ void Renderer3D::loadShader()
 void Renderer3D::startBatch()
 {
 	Renderer<Vertex>::startBatch();
-	m_elementBufferPtr = m_elementBufferBase;
+	m_elementBufferPtr = m_elementBufferBase.get();
 }
 
 // -----------------------------------------
 
+RendererPostProcess::RendererPostProcess(s)
+{
+	Renderer2D::initialize();
+
+	ruc::info("RendererPostProcess initialized");
+}
+
+RendererPostProcess::~RendererPostProcess()
+{
+}
+
 void RendererPostProcess::drawQuad(const TransformComponent& transform, std::shared_ptr<Texture> albedo, std::shared_ptr<Texture> position, std::shared_ptr<Texture> normal)
 {
 	nextBatch();
@@ -611,12 +634,24 @@ void RendererPostProcess::drawQuad(const TransformComponent& transform, std::sha
 
 void RendererPostProcess::loadShader()
 {
-	ruc::error("POSTPROCESSING!");
 	m_shader = AssetManager::the().load<Shader>("assets/glsl/post-process");
 }
 
 // -----------------------------------------
 
+RendererLightCube::RendererLightCube(s)
+{
+	RendererCubemap::initialize();
+
+	m_enableDepthBuffer = true;
+
+	ruc::info("RendererLightCube initialized");
+}
+
+RendererLightCube::~RendererLightCube()
+{
+}
+
 void RendererLightCube::loadShader()
 {
 	m_shader = AssetManager::the().load<Shader>("assets/glsl/lightsource");

src/inferno/render/renderer.h

@@ -16,9 +16,10 @@
 #include "glm/ext/vector_float4.hpp"   // glm::vec4
 #include "ruc/singleton.h"
 
+#include "inferno/asset/shader.h"
+
 namespace Inferno {
 
-class Shader;
 class Texture;
 class TransformComponent;
 class VertexArray;
@@ -79,6 +80,8 @@ public:
 
 	void setEnableDepthBuffer(bool state) { m_enableDepthBuffer = state; }
 
+	uint32_t shaderID() const { return m_shader->id(); }
+
 protected:
 	Renderer() {}
 	virtual ~Renderer() { destroy(); };
@@ -102,11 +105,11 @@ protected:
 	// CPU quad vertices
 	uint32_t m_vertexIndex { 0 };
 	uint32_t m_elementIndex { 0 };
-	T* m_vertexBufferBase { nullptr };
+	std::unique_ptr<T[]> m_vertexBufferBase { nullptr };
 	T* m_vertexBufferPtr { nullptr };
 
 	// Texture units
-	static uint32_t m_maxSupportedTextureSlots;
+	static inline uint32_t m_maxSupportedTextureSlots { 0 };
 	uint32_t m_textureSlotIndex { 1 };
 	std::array<std::shared_ptr<Texture>, maxTextureSlots> m_textureSlots;
 
@@ -130,7 +133,7 @@ class Renderer2D
 	, public ruc::Singleton<Renderer2D> {
 public:
 	Renderer2D(s);
-	virtual ~Renderer2D() = default;
+	virtual ~Renderer2D();
 
 	using Singleton<Renderer2D>::destroy;
 
@@ -140,7 +143,7 @@ public:
 	void drawQuad(const TransformComponent& transform, glm::mat4 color, std::shared_ptr<Texture> texture);
 
 protected:
-	Renderer2D() { Renderer2D::initialize(); } // Needed for derived classes
+	Renderer2D() {} // Needed for derived classes
 
 	void initialize();
 
@@ -160,7 +163,7 @@ public:
 
 public:
 	RendererCubemap(s);
-	virtual ~RendererCubemap() = default;
+	virtual ~RendererCubemap();
 
 	using Singleton<RendererCubemap>::destroy;
 
@@ -170,7 +173,7 @@ public:
 	void drawCubemap(const TransformComponent& transform, glm::mat4 color, std::shared_ptr<Texture> texture);
 
 protected:
-	RendererCubemap() { RendererCubemap::initialize(); } // Needed for derived classes
+	RendererCubemap() {} // Needed for derived classes
 
 	void initialize();
 
@@ -188,7 +191,7 @@ class RendererFont final
 	, public ruc::Singleton<RendererFont> {
 public:
 	RendererFont(s);
-	virtual ~RendererFont() = default;
+	virtual ~RendererFont();
 
 	using Singleton<RendererFont>::destroy;
 
@@ -205,7 +208,7 @@ class Renderer3D final
 	, public ruc::Singleton<Renderer3D> {
 public:
 	Renderer3D(s);
-	virtual ~Renderer3D() = default;
+	virtual ~Renderer3D();
 
 	using Singleton<Renderer3D>::destroy;
 
@@ -219,7 +222,7 @@ private:
 
 private:
 	// CPU element vertices
-	uint32_t* m_elementBufferBase { nullptr };
+	std::unique_ptr<uint32_t[]> m_elementBufferBase { nullptr };
 	uint32_t* m_elementBufferPtr { nullptr };
 };
 
@@ -229,15 +232,13 @@ class RendererPostProcess final
 	: public Renderer2D
 	, public ruc::Singleton<RendererPostProcess> {
 public:
-	RendererPostProcess(ruc::Singleton<RendererPostProcess>::s)
+	using Singleton<RendererPostProcess>::s;
-		: Renderer2D()
-	{
-	}
-	virtual ~RendererPostProcess() = default;
-
 	using Singleton<RendererPostProcess>::the;
 	using Singleton<RendererPostProcess>::destroy;
 
+	RendererPostProcess(s);
+	virtual ~RendererPostProcess();
+
 	void drawQuad(const TransformComponent& transform, std::shared_ptr<Texture> albedo, std::shared_ptr<Texture> position, std::shared_ptr<Texture> normal);
 
 private:
@@ -250,16 +251,13 @@ class RendererLightCube final
 	: public RendererCubemap
 	, public ruc::Singleton<RendererLightCube> {
 public:
-	RendererLightCube(ruc::Singleton<RendererLightCube>::s)
+	using Singleton<RendererLightCube>::s;
-		: RendererCubemap()
-	{
-		m_enableDepthBuffer = true;
-	}
-	virtual ~RendererLightCube() = default;
-
 	using Singleton<RendererLightCube>::the;
 	using Singleton<RendererLightCube>::destroy;
 
+	RendererLightCube(s);
+	virtual ~RendererLightCube();
+
 	void beginScene(glm::mat4, glm::mat4) override {}
 
 private:

src/inferno/render/shader-storage-buffer.cpp

@@ -0,0 +1,195 @@
+/*
+ * Copyright (C) 2024 Riyyi
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include <cstdint> // int32_t, uint8_t, uintt32_t
+
+#include "glad/glad.h"
+#include "glm/ext/matrix_float2x2.hpp" // glm::mat2
+#include "glm/ext/matrix_float3x3.hpp" // glm::mat3
+#include "glm/ext/vector_float4.hpp"   // glm::vec4
+
+#include "inferno/render/buffer.h"
+#include "inferno/render/shader-storage-buffer.h"
+
+namespace Inferno {
+
+ShaderStorageBuffer::ShaderStorageBuffer(s)
+{
+	// Get maximum uniformbuffer bindings the GPU supports
+	int32_t maxBindingPoints = 0;
+	glGetIntegerv(GL_MAX_SHADER_STORAGE_BUFFER_BINDINGS, &maxBindingPoints);
+	m_maxBindingPoints = static_cast<uint8_t>(maxBindingPoints);
+}
+
+ShaderStorageBuffer::~ShaderStorageBuffer()
+{
+}
+
+// -----------------------------------------
+
+// https://stackoverflow.com/questions/56512216#answer-56513136
+void ShaderStorageBuffer::setLayout(std::string_view blockName, uint8_t bindingPoint, uint32_t shaderID)
+{
+	VERIFY(bindingPoint < m_maxBindingPoints,
+	       "shader storage buffer exceeded binding points: {}/{}", bindingPoint, m_maxBindingPoints);
+
+	if (!exists(blockName)) {
+		m_blocks[blockName.data()] = {};
+	}
+
+	BufferBlock& block = m_blocks[blockName.data()];
+	block.bindingPoint = bindingPoint;
+	block.memberOffsets.clear();
+
+	glBindBuffer(GL_SHADER_STORAGE_BUFFER, block.id);
+
+	// Get the shader block index
+	uint32_t resourceIndex = glGetProgramResourceIndex(shaderID, GL_SHADER_STORAGE_BLOCK, blockName.data());
+	VERIFY(resourceIndex != GL_INVALID_INDEX, "block doesnt exist in shader: {}::{}", blockName, shaderID);
+
+	// Get the amount of member variables
+	uint32_t prop = GL_NUM_ACTIVE_VARIABLES;
+	int32_t memberCount;
+	glGetProgramResourceiv(shaderID, GL_SHADER_STORAGE_BLOCK, resourceIndex, 1, &prop, 1, nullptr, &memberCount);
+
+	// Get the indices of the members
+	prop = GL_ACTIVE_VARIABLES;
+	std::vector<int32_t> members(memberCount);
+	glGetProgramResourceiv(shaderID, GL_SHADER_STORAGE_BLOCK, resourceIndex, 1, &prop, (int32_t)members.size(), nullptr, members.data());
+
+	// Reserve memory for the names of the members
+	int32_t memberNameSize;
+	glGetProgramInterfaceiv(shaderID, GL_BUFFER_VARIABLE, GL_MAX_NAME_LENGTH, &memberNameSize);
+	std::vector<char> memberNameBuffer(memberNameSize);
+
+	int32_t lastOffset = 0;
+	int32_t lastType = 0;
+	for (int32_t i = 0; i < memberCount; i++) {
+
+		// Get name of buffer variable
+		int32_t stringLength;
+		glGetProgramResourceName(shaderID, GL_BUFFER_VARIABLE, members[i], memberNameSize, &stringLength, memberNameBuffer.data());
+		std::string memberName = std::string(memberNameBuffer.begin(), memberNameBuffer.begin() + stringLength);
+
+		// Get the other data needed for computing
+
+		uint32_t props[7] = {
+			GL_OFFSET,                 // 0
+			GL_TYPE,                   // 1
+			GL_ARRAY_SIZE,             // 2
+			GL_ARRAY_STRIDE,           // 3
+			GL_MATRIX_STRIDE,          // 4
+			GL_TOP_LEVEL_ARRAY_SIZE,   // 5
+			GL_TOP_LEVEL_ARRAY_STRIDE, // 6
+		};
+		int32_t params[7];
+		glGetProgramResourceiv(shaderID, GL_BUFFER_VARIABLE, members[i], 7, props, 7, nullptr, params);
+
+		// ruc::error("{}", memberName);
+		// ruc::error("\n    Offset: {}, type: {:#x}, arraySize: {}, arrayStride: {},\n    matrixStride: {}, top level size: {}, top level stride: {}\n",
+		//            params[0], params[1], params[2], params[3], params[4], params[5], params[6]);
+
+		// Array of structs
+		if (params[5] != 1 && params[6 != 0]) {
+			size_t bracketOpen = memberName.find_first_of('[');
+			size_t bracketClose = memberName.find_first_of(']');
+			std::string memberNameBegin = memberName.substr(0, bracketOpen);    // name: myArray[0].member -> myArray
+			std::string memberNameMember = memberName.substr(bracketClose + 1); // name: myArray[0].member -> .member
+			for (int32_t j = 0; j < params[5]; ++j) {
+				lastOffset = params[0] + (j * params[6]); // calc offset
+				lastType = params[1];
+
+				// Only add the member variant the first time its encountered
+				if (j == 0 && block.memberOffsets.find(memberNameBegin) == block.memberOffsets.end()) {
+					block.memberOffsets.emplace(memberNameBegin, lastOffset); // name: myArray
+				}
+
+				// Only add the index variant the first time its encountered
+				std::string memberNameIndex = memberNameBegin + "[" + std::to_string(j) + "]"; // name: myArray -> myArray[i]
+				if (block.memberOffsets.find(memberNameIndex) == block.memberOffsets.end()) {
+					block.memberOffsets.emplace(memberNameIndex, lastOffset);
+				}
+
+				block.memberOffsets.emplace(memberNameIndex + memberNameMember, // name: myArray -> myArray[i].member
+				                            lastOffset);
+			}
+		}
+		// Array of primitives
+		else if (params[2] != 1 && params[3] != 0) {
+			std::string memberNameBegin = memberName.substr(0, memberName.find_first_of('[')); // name: myArray[0] -> myArray
+			for (int32_t j = 0; j < params[2]; ++j) {
+				lastOffset = params[0] + (j * params[3]); // calc offset
+				lastType = params[1];
+
+				// Only add the member variant the first time its encountered
+				if (j == 0) {
+					block.memberOffsets.emplace(memberNameBegin, lastOffset); // name: myArray
+				}
+
+				block.memberOffsets.emplace(memberNameBegin + "[" + std::to_string(j) + "]", // name: myArray -> myArray[i]
+				                            lastOffset);
+			}
+		}
+		// Matrix case
+		else if (params[4] != 0) {
+			lastType = params[1];
+			lastOffset = params[0];
+			block.memberOffsets.emplace(memberName, params[0]);
+		}
+		else {
+			lastType = params[1];
+			lastOffset = params[0];
+			block.memberOffsets.emplace(memberName, params[0]);
+		}
+	}
+
+	block.size = lastOffset + BufferElement::getGLTypeSize(lastType);
+
+	glBindBuffer(GL_SHADER_STORAGE_BUFFER, 0);
+
+	// Results
+	// for (auto [k, v] : block.memberOffsets) {
+	// 	ruc::error("{}:{}", k, v);
+	// }
+}
+
+void ShaderStorageBuffer::create(std::string_view blockName)
+{
+	VERIFY(exists(blockName), "shader storage buffer block doesnt exist");
+
+	BufferBlock& block = m_blocks[blockName.data()];
+
+	if (block.id != 0) {
+		glDeleteBuffers(1, &block.id);
+	}
+
+	// Allocate buffer
+	block.id = UINT_MAX;
+	glGenBuffers(1, &block.id);
+	glBindBuffer(GL_SHADER_STORAGE_BUFFER, block.id);
+	glBufferData(GL_SHADER_STORAGE_BUFFER, block.size, NULL, GL_DYNAMIC_DRAW);
+	glBindBuffer(GL_SHADER_STORAGE_BUFFER, 0);
+
+	// Bind buffer to binding point
+	glBindBufferBase(GL_SHADER_STORAGE_BUFFER, block.bindingPoint, block.id);
+}
+
+void ShaderStorageBuffer::setValue(std::string_view blockName, std::string_view member, bool value)
+{
+	setValue(blockName, member, static_cast<uint32_t>(value), sizeof(uint32_t));
+}
+
+void ShaderStorageBuffer::setValue(std::string_view blockName, std::string_view member, glm::mat2 value)
+{
+	setValue(blockName, member, static_cast<glm::mat4>(value), sizeof(glm::vec4) * 2);
+}
+
+void ShaderStorageBuffer::setValue(std::string_view blockName, std::string_view member, glm::mat3 value)
+{
+	setValue(blockName, member, static_cast<glm::mat4>(value), sizeof(glm::vec4) * 3);
+}
+
+} // namespace Inferno

src/inferno/render/shader-storage-buffer.h

@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2024 Riyyi
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#pragma once
+
+#include <cstddef> // size_t
+#include <cstdint> // uint8_t, uint32_t
+#include <string_view>
+#include <unordered_map>
+
+#include "glad/glad.h"
+#include "glm/ext/matrix_float2x2.hpp" // glm::mat2
+#include "glm/ext/matrix_float3x3.hpp" // glm::mat3
+#include "ruc/singleton.h"
+
+#define CHECK_SET_CALL(blockName, member)                                                 \
+	VERIFY(exists(blockName), "shader storage buffer block doesnt exist: {}", blockName); \
+	const BufferBlock& block = m_blocks[blockName.data()];                                \
+	VERIFY(block.memberOffsets.find(member.data()) != block.memberOffsets.end(),          \
+	       "shader storage buffer member doesnt exist: {}", member);
+
+namespace Inferno {
+
+struct BufferBlock {
+	uint32_t id { 0 };
+	uint32_t size { 0 };
+	uint8_t bindingPoint { 0 };
+	std::unordered_map<std::string, uint32_t> memberOffsets {};
+};
+
+class ShaderStorageBuffer final : public ruc::Singleton<ShaderStorageBuffer> { // Shader Storage Buffer Object, SSBO
+public:
+	ShaderStorageBuffer(s);
+	virtual ~ShaderStorageBuffer();
+
+	void setLayout(std::string_view blockName, uint8_t bindingPoint, uint32_t shaderID);
+	void create(std::string_view blockName);
+
+	bool exists(std::string_view blockName) const { return m_blocks.find(blockName.data()) != m_blocks.end(); }
+
+	template<typename T> // Capture value by reference, instead of decaying to pointer
+	void setValue(std::string_view blockName, std::string_view member, T&& value, size_t size = 0)
+	{
+		CHECK_SET_CALL(blockName, member);
+
+		glBindBuffer(GL_SHADER_STORAGE_BUFFER, block.id);
+		glBufferSubData(GL_SHADER_STORAGE_BUFFER, block.memberOffsets.at(member.data()), (size) ? size : sizeof(T), &value);
+		glBindBuffer(GL_SHADER_STORAGE_BUFFER, 0);
+	}
+	// Exceptions:
+	void setValue(std::string_view blockName, std::string_view member, bool value);
+	void setValue(std::string_view blockName, std::string_view member, glm::mat2 value);
+	void setValue(std::string_view blockName, std::string_view member, glm::mat3 value);
+
+private:
+	uint8_t m_maxBindingPoints { 0 };
+	std::unordered_map<std::string, BufferBlock> m_blocks;
+};
+
+} // namespace Inferno

src/inferno/render/shader-structs.h

@@ -0,0 +1,24 @@
+/*
+ * Copyright (C) 2024 Riyyi
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#pragma once
+
+#include "glm/ext/vector_float3.hpp" // glm::vec3
+
+namespace Inferno {
+
+// Shader storage block layouts, using std430 memory layout rules
+
+#define MAX_DIRECTIONAL_LIGHTS 4
+struct alignas(16) DirectionalLightBlock {
+	alignas(16) glm::vec3 direction { 0 };
+
+	alignas(16) glm::vec3 ambient { 0 };
+	alignas(16) glm::vec3 diffuse { 0 };
+	alignas(16) glm::vec3 specular { 0 };
+};
+
+} // namespace Inferno

src/inferno/render/uniformbuffer.cpp

@@ -59,6 +59,7 @@ void Uniformbuffer::setLayout(std::string_view blockName, uint8_t bindingPoint,
 
 	UniformbufferBlock& block = m_blocks[blockName];
 	block.bindingPoint = bindingPoint;
+	block.uniformLocations.clear();
 
 	// Example block layout:
 	// - mat3

src/inferno/render/uniformbuffer.h

@@ -4,6 +4,8 @@
  * SPDX-License-Identifier: MIT
  */
 
+#pragma once
+
 #include <cstddef> // size_t
 #include <cstdint> // uint8_t, uint32_t
 #include <string>
@@ -13,36 +15,18 @@
 #include "glad/glad.h"
 #include "glm/ext/matrix_float2x2.hpp" // glm::mat2
 #include "glm/ext/matrix_float3x3.hpp" // glm::mat3
-#include "glm/ext/vector_float3.hpp"   // glm::vec3
 #include "ruc/singleton.h"
 
 #include "inferno/render/buffer.h"
 
-#define CHECK_SET_CALL(blockName, member)                                              \
+#define CHECK_UNIFORM_SET_CALL(blockName, member)                                      \
-	VERIFY(exists(blockName), "uniformbuffer block doesnt exist");                     \
+	VERIFY(exists(blockName), "uniformbuffer block doesnt exist: {}", blockName);      \
 	const UniformbufferBlock& block = m_blocks[blockName];                             \
 	VERIFY(block.uniformLocations.find(member.data()) != block.uniformLocations.end(), \
-	       "uniformbuffer block member doesnt exist");
+	       "uniformbuffer member doesnt exist: {}", member);
 
 namespace Inferno {
 
-// Uniform block layouts, using std140 memory layout rules
-
-#define MAX_DIRECTIONAL_LIGHTS 32
-struct UniformDirectionalLight {
-	glm::vec3 direction { 0 };
-	float __padding0 { 0 };
-
-	glm::vec3 ambient { 0 };
-	float __padding1 { 0 };
-	glm::vec3 diffuse { 0 };
-	float __padding2 { 0 };
-	glm::vec3 specular { 0 };
-	float __padding3 { 0 };
-};
-
-// -----------------------------------------
-
 struct UniformbufferBlock {
 	uint32_t id { 0 };
 	uint32_t size { 0 };
@@ -62,7 +46,7 @@ public:
 	template<typename T> // Capture value by reference, instead of decaying to pointer
 	void setValue(std::string_view blockName, std::string_view member, T&& value, size_t size = 0)
 	{
-		CHECK_SET_CALL(blockName, member);
+		CHECK_UNIFORM_SET_CALL(blockName, member);
 
 		glBindBuffer(GL_UNIFORM_BUFFER, block.id);
 		glBufferSubData(GL_UNIFORM_BUFFER, block.uniformLocations.at(member.data()), (size) ? size : sizeof(T), &value);

src/inferno/system/rendersystem.cpp

@@ -16,6 +16,8 @@
 #include "inferno/render/framebuffer.h"
 #include "inferno/render/render-command.h"
 #include "inferno/render/renderer.h"
+#include "inferno/render/shader-storage-buffer.h"
+#include "inferno/render/shader-structs.h"
 #include "inferno/render/uniformbuffer.h"
 #include "inferno/system/camerasystem.h"
 #include "inferno/system/rendersystem.h"
@@ -57,16 +59,8 @@ void RenderSystem::initialize(uint32_t width, uint32_t height)
 		});
 	Uniformbuffer::the().create("Camera");
 
-	Uniformbuffer::the().setLayout(
+	ShaderStorageBuffer::the().setLayout("DirectionalLights", 0, RendererPostProcess::the().shaderID());
-		"DirectionalLights",
+	ShaderStorageBuffer::the().create("DirectionalLights");
-		{
-			.size = sizeof(UniformDirectionalLight) * MAX_DIRECTIONAL_LIGHTS,
-			.bindingPoint = 1,
-			.uniformLocations = {
-				{ "u_directionalLight", 0 },
-			},
-		});
-	Uniformbuffer::the().create("DirectionalLights");
 
 	ruc::info("RenderSystem initialized");
 }
@@ -137,15 +131,21 @@ void RenderSystem::renderGeometry()
 	Uniformbuffer::the().setValue("Camera", "u_projectionView", projection * view);
 	Uniformbuffer::the().setValue("Camera", "u_position", translate);
 
-	static UniformDirectionalLight directionalLights[1] = {
+	static DirectionalLightBlock directionalLights[2] = {
 		{
 			.direction = { -8.0f, -8.0f, -8.0f },
 			.ambient = { 0.1f, 0.1f, 0.1f },
 			.diffuse = { 1.0f, 1.0f, 1.0f },
 			.specular = { 1.0f, 1.0f, 1.0f },
 		},
+		{
+			.direction = { 8.0f, 8.0f, 8.0f },
+			.ambient = { 0.1f, 0.1f, 0.1f },
+			.diffuse = { 1.0f, 1.0f, 1.0f },
+			.specular = { 1.0f, 0.0f, 0.0f },
+		},
 	};
-	Uniformbuffer::the().setValue("DirectionalLights", "u_directionalLight", directionalLights);
+	ShaderStorageBuffer::the().setValue("DirectionalLights", "u_directionalLight", directionalLights);
 
 	auto modelView = m_registry->view<TransformComponent, ModelComponent>();
 

src/inferno/system/textareasystem.h

@@ -18,7 +18,7 @@
 namespace Inferno {
 
 using Symbols = std::vector<std::shared_ptr<Symbol>>;
-using SymbolQuad = std::array<SymbolVertex, Renderer<void>::vertexPerQuad>;
+using SymbolQuad = std::array<SymbolVertex, RendererFont::vertexPerQuad>;
 
 class Scene;
 class TextAreaComponent;

vendor/CMakeLists.txt

@@ -33,3 +33,4 @@ target_include_directories(${ENGINE}-dependencies PUBLIC
 	"glad/include"
 	"lua")
 target_link_libraries(${ENGINE}-dependencies glfw ruc ruc-test assimp)
+target_compile_options(${ENGINE}-dependencies PRIVATE ${COMPILE_FLAGS_DEPS})