Merge remote-tracking branch 'origin/master'

# Conflicts:
#	engine/gfx/CMakeLists.txt

data/materials/kamen_zid.material

@@ -1 +1 @@
-{"color":{"asset_value":"textures/kamen.png","float_value":0.0,"name":"","type":2,"value":{"x":0.7341179847717285,"y":0.7305880188941956,"z":0.6741179823875427}},"normal":{"asset_value":"","float_value":0.0,"name":"","type":0,"value":{"x":0.0,"y":0.0,"z":0.0}},"version":3}
+{"color":{"asset_value":"textures/kamen.png","float_value":0.0,"name":"","type":2,"value":{"x":0.7341179847717285,"y":0.7305880188941956,"z":0.6741179823875427}},"normal":{"asset_value":"textures/kamen-normal.png","float_value":0.0,"name":"","type":2,"value":{"x":0.0,"y":0.0,"z":0.0}},"version":3}

data/materials/pod.material

@@ -1 +1 @@
-{"color":{"asset_value":"textures/mramor6x6.png","float_value":0.0,"name":"","type":2,"value":{"x":0.7341179847717285,"y":0.7094119787216187,"z":0.6741179823875427}},"normal":{"asset_value":"","float_value":0.0,"name":"","type":0,"value":{"x":0.0,"y":0.0,"z":0.0}},"version":3}
+{"color":{"asset_value":"textures/mramor6x6.png","float_value":0.0,"name":"","type":2,"value":{"x":0.7341179847717285,"y":0.7094119787216187,"z":0.6741179823875427}},"normal":{"asset_value":"textures/mrarmor-normal.png","float_value":0.0,"name":"","type":2,"value":{"x":0.0,"y":0.0,"z":0.0}},"version":3}

engine/core/include/engine.hpp

@@ -302,6 +302,7 @@ namespace prism {
 #endif
 
         bool console_enabled = true;
+        bool ui_enabled = true;
 
     private:
         void setup_scene(Scene& scene);

engine/core/src/engine.cpp

@@ -449,6 +449,9 @@ void engine::process_key_down(const unsigned int keyCode) {
 
     if(keyCode == platform::get_keycode(InputButton::C))
         console_enabled = !console_enabled;
+
+    if(keyCode == platform::get_keycode(InputButton::Backspace))
+        ui_enabled = !ui_enabled;
 }
 
 void engine::process_key_up(const unsigned int keyCode) {
@@ -620,12 +623,14 @@ void engine::update_animation(const Animation& anim, const float time) {
 
 void engine::begin_frame(const float delta_time) {
     imgui->begin_frame(delta_time);
-    
-    if(debug_enabled)
-        draw_debug_ui();
 
-    if(console_enabled)
-        draw_console();
+    if(ui_enabled) {
+        if (debug_enabled)
+            draw_debug_ui();
+
+        if (console_enabled)
+            draw_console();
+    }
 
     if(current_app != nullptr)
         current_app->begin_frame();

engine/gfx/CMakeLists.txt

@@ -16,6 +16,20 @@ add_custom_target(GFXInterface SOURCES
     public/gfx_sampler.hpp)
 set_target_properties(GFXInterface PROPERTIES CMAKE_FOLDER "GFX")
 
+add_subdirectory(dummy)
+
+if(ENABLE_DX12)
+    add_subdirectory(dx12)
+endif()
+
+if(ENABLE_METAL)
+    add_subdirectory(metal)
+endif()
+
 if(ENABLE_VULKAN)
    add_subdirectory(vulkan)
 endif()
+
+if(ENABLE_WEBGPU)
+   add_subdirectory(webgpu)
+endif()

engine/gfx/dx12/CMakeLists.txt

@@ -0,0 +1,3 @@
+add_library(GFXDX12 STATIC src/gfx_dummy.cpp)
+target_include_directories(GFXDX12 PUBLIC include)
+target_link_libraries(GFXDX12 PUBLIC GFX)

engine/gfx/dx12/include/gfx_dummy.hpp

@@ -0,0 +1,30 @@
+#pragma once
+
+#include "gfx.hpp"
+
+class GFXDummy : public GFX {
+public:
+    bool initialize() override;
+	void initializeView(void* native_handle, uint32_t width, uint32_t height) override;
+
+    // buffer operations
+    GFXBuffer* createBuffer(void* data, GFXSize size, GFXBufferUsage usage) override;
+    void copyBuffer(GFXBuffer* buffer, void* data, GFXSize offset, GFXSize size) override;
+    
+    // texture operations
+    GFXTexture* createTexture(uint32_t width, uint32_t height, GFXPixelFormat format, GFXStorageMode storageMode, GFXTextureUsage usage) override;
+    void copyTexture(GFXTexture* texture, void* data, GFXSize size) override;
+    
+    // framebuffer operations
+    GFXFramebuffer* createFramebuffer(GFXFramebufferCreateInfo& info) override;
+    
+    // render pass operations
+    GFXRenderPass* createRenderPass(GFXRenderPassCreateInfo& info) override;
+    
+    // pipeline operations
+    GFXPipeline* createPipeline(GFXPipelineCreateInfo& info) override;
+    
+    void render(GFXCommandBuffer* command_buffer) override;
+    
+    const char* getName() override;
+};

engine/gfx/dx12/src/gfx_dummy.cpp

@@ -0,0 +1,46 @@
+#include "gfx_dummy.hpp"
+
+bool GFXDummy::initialize() {
+	return true;
+}
+
+void GFXDummy::initializeView(void* native_handle, uint32_t width, uint32_t height) {
+       
+}
+
+GFXBuffer* GFXDummy::createBuffer(void* data, GFXSize size, GFXBufferUsage usage) {
+    return nullptr;
+}
+
+void GFXDummy::copyBuffer(GFXBuffer* buffer, void* data, GFXSize offset, GFXSize size) {
+
+}
+
+GFXTexture* GFXDummy::createTexture(uint32_t width, uint32_t height, GFXPixelFormat format, GFXStorageMode storageMode, GFXTextureUsage usage) {
+    return nullptr;
+}
+
+void GFXDummy::copyTexture(GFXTexture* texture, void* data, GFXSize size) {
+
+}
+
+
+GFXFramebuffer* GFXDummy::createFramebuffer(GFXFramebufferCreateInfo& info) {
+    return nullptr;
+}
+
+GFXRenderPass* GFXDummy::createRenderPass(GFXRenderPassCreateInfo& info) {
+    return nullptr;
+}
+
+GFXPipeline* GFXDummy::createPipeline(GFXPipelineCreateInfo& info) {
+    return nullptr;
+}
+
+void GFXDummy::render(GFXCommandBuffer* command_buffer) {
+
+}
+
+const char* GFXDummy::getName() {
+    return "None";
+}

engine/gfx/metal/CMakeLists.txt

@@ -0,0 +1,29 @@
+set(SRC
+    include/gfx_metal.hpp
+    
+    src/gfx_metal.mm
+    src/gfx_metal_buffer.hpp
+    src/gfx_metal_pipeline.hpp
+    src/gfx_metal_texture.hpp
+    src/gfx_metal_framebuffer.hpp
+    src/gfx_metal_renderpass.hpp
+    src/gfx_metal_sampler.hpp)
+
+add_library(GFXMetal STATIC
+    ${SRC})
+
+set_target_properties(GFXMetal PROPERTIES
+    FRAMEWORK TRUE
+    FRAMEWORK_VERSION OBJC
+    PUBLIC_HEADER "${HEADERS}"
+)
+target_link_libraries(GFXMetal PUBLIC
+    GFX
+    Core
+    Log
+    "-framework Metal")
+target_include_directories(GFXMetal PUBLIC
+    include
+    PRIVATE
+    src)
+set_engine_properties(GFXMetal)

engine/gfx/metal/include/gfx_metal.hpp

@@ -0,0 +1,70 @@
+#pragma once
+
+#include <Metal/Metal.h>
+#include <MetalKit/MetalKit.h>
+
+#include "gfx.hpp"
+
+class GFXMetal : public GFX {
+public:
+    bool is_supported() override;
+    GFXContext required_context() override { return GFXContext::Metal; }
+    ShaderLanguage accepted_shader_language() override { return ShaderLanguage::MSL; }
+    const char* get_name() override;
+    
+    bool supports_feature(const GFXFeature feature) override;
+    
+    bool initialize(const GFXCreateInfo& createInfo) override;
+
+    void initialize_view(void* native_handle, const int identifier, const uint32_t width, const uint32_t height) override;
+    void remove_view(const int identifier) override;
+
+    // buffer operations
+    GFXBuffer* create_buffer(void* data, const GFXSize size, const bool dynamicData, const GFXBufferUsage usage) override;
+    void copy_buffer(GFXBuffer* buffer, void* data, const GFXSize offset, const GFXSize size) override;
+    
+    void* get_buffer_contents(GFXBuffer* buffer) override;
+    
+    // texture operations
+    GFXTexture* create_texture(const GFXTextureCreateInfo& info) override;
+    void copy_texture(GFXTexture* texture, void* data, GFXSize size) override;
+    void copy_texture(GFXTexture* from, GFXTexture* to) override;
+    void copy_texture(GFXTexture* from, GFXBuffer* to) override;
+    
+    // sampler opeations
+    GFXSampler* create_sampler(const GFXSamplerCreateInfo& info) override;
+
+    // framebuffer operations
+    GFXFramebuffer* create_framebuffer(const GFXFramebufferCreateInfo& info) override;
+    
+    // render pass operations
+    GFXRenderPass* create_render_pass(const GFXRenderPassCreateInfo& info) override;
+    
+    // pipeline operations
+    GFXPipeline* create_graphics_pipeline(const GFXGraphicsPipelineCreateInfo& info) override;
+    GFXPipeline* create_compute_pipeline(const GFXComputePipelineCreateInfo& info) override;
+
+    GFXCommandBuffer* acquire_command_buffer(bool for_presentation_use = false) override;
+    
+    void submit(GFXCommandBuffer* command_buffer, const int window = -1) override;
+        
+private:
+    struct NativeMTLView {
+        int identifier = -1;
+        CAMetalLayer* layer = nullptr;
+    };
+    
+    std::vector<NativeMTLView*> nativeViews;
+    
+    NativeMTLView* getNativeView(int identifier) {
+        for(auto& view : nativeViews) {
+            if(view->identifier == identifier)
+                return view;
+        }
+        
+        return nullptr;
+    }
+    
+    id<MTLDevice> device = nil;
+    id<MTLCommandQueue> command_queue = nil;
+};

engine/gfx/metal/src/gfx_metal_buffer.hpp

@@ -0,0 +1,19 @@
+#pragma once
+
+#include <Metal/Metal.h>
+
+#include "gfx_buffer.hpp"
+
+class GFXMetalBuffer : public GFXBuffer {
+public:
+    id<MTLBuffer> handles[3] = {nil, nil, nil};
+    bool dynamicData = false;
+    
+    id<MTLBuffer> get(int frameIndex) {
+        if(dynamicData) {
+            return handles[frameIndex];
+        } else {
+            return handles[0];
+        }
+    }
+};

engine/gfx/metal/src/gfx_metal_framebuffer.hpp

@@ -0,0 +1,13 @@
+#pragma once
+
+#include <Metal/Metal.h>
+#include <vector>
+
+#include "gfx_framebuffer.hpp"
+
+class GFXMetalTexture;
+
+class GFXMetalFramebuffer : public GFXFramebuffer {
+public:
+    std::vector<GFXMetalTexture*> attachments;
+};

engine/gfx/metal/src/gfx_metal_pipeline.hpp

@@ -0,0 +1,32 @@
+#pragma once
+
+#include <Metal/Metal.h>
+
+#include "gfx_pipeline.hpp"
+
+class GFXMetalPipeline : public GFXPipeline {
+public:
+    std::string label;
+    
+    id<MTLRenderPipelineState> handle = nil;
+    id<MTLComputePipelineState> compute_handle = nil;
+    
+    MTLSize threadGroupSize;
+
+    id<MTLDepthStencilState> depthStencil = nil;
+    MTLPrimitiveType primitiveType;
+
+    MTLCullMode cullMode;
+    GFXWindingMode winding_mode;
+
+    struct VertexStride {
+        int location, stride;
+    };
+    
+    std::vector<VertexStride> vertexStrides;
+    
+    int pushConstantSize = 0;
+    int pushConstantIndex = 0;
+    
+    bool renderWire = false;
+};

engine/gfx/metal/src/gfx_metal_renderpass.hpp

@@ -0,0 +1,10 @@
+#pragma once
+
+#include <Metal/Metal.h>
+
+#include "gfx_renderpass.hpp"
+
+class GFXMetalRenderPass : public GFXRenderPass {
+public:
+    std::vector<MTLPixelFormat> attachments;
+};

engine/gfx/metal/src/gfx_metal_sampler.hpp

@@ -0,0 +1,10 @@
+#pragma once
+
+#include <Metal/Metal.h>
+
+#include "gfx_sampler.hpp"
+
+class GFXMetalSampler : public GFXSampler {
+public:
+    id<MTLSamplerState> handle = nil;
+};

engine/gfx/metal/src/gfx_metal_texture.hpp

@@ -0,0 +1,16 @@
+#pragma once
+
+#include <Metal/Metal.h>
+
+#include "gfx_texture.hpp"
+
+class GFXMetalTexture : public GFXTexture {
+public:
+    id<MTLTexture> handle = nil;
+    id<MTLSamplerState> sampler = nil;
+
+    int array_length = 1;
+    bool is_cubemap = false;
+    
+    MTLPixelFormat format;
+};

engine/gfx/webgpu/CMakeLists.txt

@@ -0,0 +1,3 @@
+add_library(GFXWebGPU STATIC src/gfx_dummy.cpp)
+target_include_directories(GFXWebGPU PUBLIC include)
+target_link_libraries(GFXWebGPU PUBLIC GFX)

engine/gfx/webgpu/include/gfx_dummy.hpp

@@ -0,0 +1,30 @@
+#pragma once
+
+#include "gfx.hpp"
+
+class GFXDummy : public GFX {
+public:
+    bool initialize() override;
+	void initializeView(void* native_handle, uint32_t width, uint32_t height) override;
+
+    // buffer operations
+    GFXBuffer* createBuffer(void* data, GFXSize size, GFXBufferUsage usage) override;
+    void copyBuffer(GFXBuffer* buffer, void* data, GFXSize offset, GFXSize size) override;
+    
+    // texture operations
+    GFXTexture* createTexture(uint32_t width, uint32_t height, GFXPixelFormat format, GFXStorageMode storageMode, GFXTextureUsage usage) override;
+    void copyTexture(GFXTexture* texture, void* data, GFXSize size) override;
+    
+    // framebuffer operations
+    GFXFramebuffer* createFramebuffer(GFXFramebufferCreateInfo& info) override;
+    
+    // render pass operations
+    GFXRenderPass* createRenderPass(GFXRenderPassCreateInfo& info) override;
+    
+    // pipeline operations
+    GFXPipeline* createPipeline(GFXPipelineCreateInfo& info) override;
+    
+    void render(GFXCommandBuffer* command_buffer) override;
+    
+    const char* getName() override;
+};

engine/gfx/webgpu/src/gfx_dummy.cpp

@@ -0,0 +1,46 @@
+#include "gfx_dummy.hpp"
+
+bool GFXDummy::initialize() {
+	return true;
+}
+
+void GFXDummy::initializeView(void* native_handle, uint32_t width, uint32_t height) {
+       
+}
+
+GFXBuffer* GFXDummy::createBuffer(void* data, GFXSize size, GFXBufferUsage usage) {
+    return nullptr;
+}
+
+void GFXDummy::copyBuffer(GFXBuffer* buffer, void* data, GFXSize offset, GFXSize size) {
+
+}
+
+GFXTexture* GFXDummy::createTexture(uint32_t width, uint32_t height, GFXPixelFormat format, GFXStorageMode storageMode, GFXTextureUsage usage) {
+    return nullptr;
+}
+
+void GFXDummy::copyTexture(GFXTexture* texture, void* data, GFXSize size) {
+
+}
+
+
+GFXFramebuffer* GFXDummy::createFramebuffer(GFXFramebufferCreateInfo& info) {
+    return nullptr;
+}
+
+GFXRenderPass* GFXDummy::createRenderPass(GFXRenderPassCreateInfo& info) {
+    return nullptr;
+}
+
+GFXPipeline* GFXDummy::createPipeline(GFXPipelineCreateInfo& info) {
+    return nullptr;
+}
+
+void GFXDummy::render(GFXCommandBuffer* command_buffer) {
+
+}
+
+const char* GFXDummy::getName() {
+    return "None";
+}

engine/renderer/src/materialcompiler.cpp

@@ -215,7 +215,13 @@ ShaderSource MaterialCompiler::compile_material_fragment(Material& material, boo
 
         src += "layout(binding = " + std::to_string(sampler_index++) + ") uniform sampler2D colorTexture;\n";
     }
-    
+
+    if(material.normalProperty.type == DataType::AssetTexture) {
+        material.bound_textures[sampler_index] = material.normalProperty.value_tex;
+
+        src += "layout(binding = " + std::to_string(sampler_index++) + ") uniform sampler2D normalTexture;\n";
+    }
+
     if(use_ibl) {
         src += "vec3 get_reflect(int i, vec3 final_normal) {\n \
         const vec3 direction = normalize(in_frag_pos - scene.camPos.xyz);\n \
@@ -292,7 +298,16 @@ ShaderSource MaterialCompiler::compile_material_fragment(Material& material, boo
     src += "vec3 final_diffuse_color =  from_srgb_to_linear(Color);\n";
     src += "float final_roughness = scene.materials[inMaterialIndex].info.y;\n";
     src += "float final_metallic = scene.materials[inMaterialIndex].info.x;\n";
-    src += "vec3 final_normal = in_normal;\n";
+
+    if(material.normalProperty.type == DataType::AssetTexture) {
+        prism::log("enabling normal mapping on material..");
+
+        src += "vec3 final_normal = texture(normalTexture, in_uv).rgb;\n";
+        src += "final_normal = final_normal * 2.0 - 1.0;\n";
+        src += "final_normal = in_tbn * final_normal;\n";
+    } else {
+        src += "vec3 final_normal = in_normal;\n";
+    }
     
     src +=
     "ComputedSurfaceInfo surface_info = compute_surface(final_diffuse_color.rgb, final_normal, final_metallic, final_roughness);\n \
@@ -312,7 +327,11 @@ ShaderSource MaterialCompiler::compile_material_fragment(Material& material, boo
                 break;\n \
         }\n \
     SurfaceBRDF surface_brdf = brdf(light_info.direction, surface_info);\n";
-        
+
+    if(render_options.enable_normal_mapping && material.normalProperty.type == DataType::AssetTexture && render_options.enable_normal_shadowing) {
+        src += std::string("light_info.radiance *= calculate_normal_lighting(normalTexture, final_normal, light_info.direction);\n");
+    }
+
     src += "Lo += ((surface_brdf.specular + surface_brdf.diffuse) * light_info.radiance * surface_brdf.NdotL) * scene.lights[i].colorSize.rgb;\n \
     }\n";
         

engine/shadercompiler/include/shadercompiler.hpp

@@ -18,7 +18,10 @@ enum class ShaderStage {
 /// The shader language that the shader is written in.
 enum class ShaderLanguage {
     GLSL,
-    SPIRV
+    SPIRV,
+    MSL,
+    HLSL,
+    WGSL // lol how do we even convert to this
 };
 
 /// Compilation options when compiling shaders.

engine/shadercompiler/src/shadercompiler.cpp

@@ -102,6 +102,15 @@ std::optional<ShaderSource> ShaderCompiler::compile(const ShaderLanguage from_la
     switch(to_language) {
         case ShaderLanguage::SPIRV:
             return ShaderSource(spirv);
+        case ShaderLanguage::MSL:
+            prism::log("Unimplemented shader language: MSL");
+            return ShaderSource(spirv);
+        case ShaderLanguage::HLSL:
+            prism::log("Unimplemented shader language: HLSL");
+            return ShaderSource(spirv);
+        case ShaderLanguage::WGSL:
+            prism::log("Unimplemented shader language: WGSL");
+            return ShaderSource(spirv);
         default:
             return {};
     }

engine/shaders/common.nocompile.glsl

@@ -1,6 +1,25 @@
 const float PI = 3.14159265359;
 const float EPSILON = 0.005;
 
+const vec2 PoissionPCFDisk[16] = {
+    vec2( -0.94201624, -0.39906216 ),
+    vec2( 0.94558609, -0.76890725 ),
+    vec2( -0.094184101, -0.92938870 ),
+    vec2( 0.34495938, 0.29387760 ),
+    vec2( -0.91588581, 0.45771432 ),
+    vec2( -0.81544232, -0.87912464 ),
+    vec2( -0.38277543, 0.27676845 ),
+    vec2( 0.97484398, 0.75648379 ),
+    vec2( 0.44323325, -0.97511554 ),
+    vec2( 0.53742981, -0.47373420 ),
+    vec2( -0.26496911, -0.41893023 ),
+    vec2( 0.79197514, 0.19090188 ),
+    vec2( -0.24188840, 0.99706507 ),
+    vec2( -0.81409955, 0.91437590 ),
+    vec2( 0.19984126, 0.78641367 ),
+    vec2( 0.14383161, -0.14100790 )
+};
+
 const vec2 PoissonOffsets[64] = {
     vec2(0.0617981, 0.07294159),
     vec2(0.6470215, 0.7474022),

engine/shaders/rendering.nocompile.glsl

@@ -66,7 +66,7 @@ struct ComputedLightInformation {
 float pcf_sun(const vec4 shadowCoords, const float uvRadius) {
     float sum = 0;
     for(int i = 0; i < 16; i++) {
-        const float z = texture(sun_shadow, shadowCoords.xy + PoissonOffsets[i] * uvRadius).r;
+        const float z = texture(sun_shadow, shadowCoords.xy + PoissionPCFDisk[i] * uvRadius).r;
         sum += (z < (shadowCoords.z - 0.005)) ? 0.0 : 1.0;
     }
     
@@ -91,8 +91,7 @@ void blocker_distance_sun(const vec3 shadowCoords, const float uvLightSize, inou
     blockers = 0;
     
     for(int i = 0; i < numBlockerSearchSamples; i++) {
-        const float z = texture(sun_shadow,
-                                shadowCoords.xy + PoissonOffsets[i] * searchWidth).r;
+        const float z = texture(sun_shadow, shadowCoords.xy + PoissionPCFDisk[i] * searchWidth).r;
         if(z < shadowCoords.z) {
             blockerSum += z;
             blockers++;
@@ -105,11 +104,12 @@ void blocker_distance_sun(const vec3 shadowCoords, const float uvLightSize, inou
 float pcss_sun(const vec4 shadowCoords, float light_size_uv) {
     float average_blocker_depth = 0.0;
     int num_blockers = 0;
+
     blocker_distance_sun(shadowCoords.xyz, light_size_uv, average_blocker_depth, num_blockers);
     if(num_blockers < 1)
         return 1.0;
     
-    const float penumbraWidth = penumbra_size(-shadowCoords.z, average_blocker_depth);
+    const float penumbraWidth = penumbra_size(shadowCoords.z, average_blocker_depth);
     
     const float uvRadius = penumbraWidth * light_size_uv * 0.1 / shadowCoords.z;
     return pcf_sun(shadowCoords, uvRadius);
@@ -145,7 +145,7 @@ ComputedLightInformation calculate_sun(Light light) {
 float pcf_spot(const vec4 shadowCoords, const int index, const float uvRadius) {
     float sum = 0;
     for(int i = 0; i < 16; i++) {
-        const float z = texture(spot_shadow, vec3(shadowCoords.xy + PoissonOffsets[i] * uvRadius, index)).r;
+        const float z = texture(spot_shadow, vec3(shadowCoords.xy + PoissionPCFDisk[i] * uvRadius, index)).r;
         sum += (z < (shadowCoords.z - 0.001)) ? 0.0 : 1.0;
     }
     
@@ -160,8 +160,7 @@ void blocker_distance_spot(const vec3 shadowCoords, const int index, const float
     blockers = 0;
     
     for(int i = 0; i < numBlockerSearchSamples; i++) {
-        const float z = texture(spot_shadow,
-                                vec3(shadowCoords.xy + PoissonOffsets[i] * searchWidth, index)).r;
+        const float z = texture(spot_shadow, vec3(shadowCoords.xy + PoissionPCFDisk[i] * searchWidth, index)).r;
         if(z < shadowCoords.z) {
             blockerSum += z;
             blockers++;
@@ -174,6 +173,7 @@ void blocker_distance_spot(const vec3 shadowCoords, const int index, const float
 float pcss_spot(const vec4 shadowCoords, const int index, float light_size_uv) {
     float average_blocker_depth = 0.0;
     int num_blockers = 0;
+
     blocker_distance_spot(shadowCoords.xyz, index, light_size_uv, average_blocker_depth, num_blockers);
     if(num_blockers < 1)
         return 1.0;
@@ -197,7 +197,7 @@ ComputedLightInformation calculate_spot(Light light) {
         const vec4 shadowCoord = fragPostSpotLightSpace[last_spot_light] / fragPostSpotLightSpace[last_spot_light].w;
 
 #ifdef SHADOW_FILTER_NONE
-            shadow = (texture(spot_shadow, vec3(shadowCoord.xy, last_spot_light)).r < shadowCoord.z) ? 0.0 : 1.0;
+            shadow = (texture(spot_shadow, vec3(shadowCoord.xy, last_spot_light)).r < shadowCoord.z - 0.005) ? 0.0 : 1.0;
 #endif
 #ifdef SHADOW_FILTER_PCF
             shadow = pcf_spot(shadowCoord, last_spot_light, 0.01);
@@ -223,14 +223,23 @@ ComputedLightInformation calculate_spot(Light light) {
 
 #ifdef POINT_SHADOWS_SUPPORTED
 
+vec3 sampleOffsetDirections[20] = vec3[]
+(
+   vec3( 1,  1,  1), vec3( 1, -1,  1), vec3(-1, -1,  1), vec3(-1,  1,  1),
+   vec3( 1,  1, -1), vec3( 1, -1, -1), vec3(-1, -1, -1), vec3(-1,  1, -1),
+   vec3( 1,  1,  0), vec3( 1, -1,  0), vec3(-1, -1,  0), vec3(-1,  1,  0),
+   vec3( 1,  0,  1), vec3(-1,  0,  1), vec3( 1,  0, -1), vec3(-1,  0, -1),
+   vec3( 0,  1,  1), vec3( 0, -1,  1), vec3( 0, -1, -1), vec3( 0,  1, -1)
+);
+
 float pcf_point(const vec3 shadowCoords, const int index, const float uvRadius) {
     float sum = 0;
-    for(int i = 0; i < 16; i++) {
-        const float z = texture(point_shadow, vec4(shadowCoords.xyz + vec3(PoissonOffsets[i].xy, PoissonOffsets[i].x) * uvRadius, index)).r;
+    for(int i = 0; i < 20; i++) {
+        const float z = texture(point_shadow, vec4(shadowCoords.xyz + sampleOffsetDirections[i] * uvRadius, index)).r;
         sum += (z < length(shadowCoords) - 0.05) ? 0.0 : 1.0;
     }
     
-    return sum / 16;
+    return sum / 20;
 }
 
 #ifdef SHADOW_FILTER_PCSS
@@ -240,9 +249,8 @@ void blocker_distance_point(const vec3 shadowCoords, const int index, const floa
     float blockerSum = 0.0;
     blockers = 0;
     
-    for(int i = 0; i < numBlockerSearchSamples; i++) {
-        const float z = texture(point_shadow,
-                                vec4(shadowCoords + vec3(PoissonOffsets[i], PoissonOffsets[i].x) * searchWidth, index)).r;
+    for(int i = 0; i < 20; i++) {
+        const float z = texture(point_shadow, vec4(shadowCoords + sampleOffsetDirections[i] * 0.05, index)).r;
         if(z < length(shadowCoords)) {
             blockerSum += z;
             blockers++;
@@ -255,14 +263,15 @@ void blocker_distance_point(const vec3 shadowCoords, const int index, const floa
 float pcss_point(const vec3 shadowCoords, const int index, float light_size_uv) {
     float average_blocker_depth = 0.0;
     int num_blockers = 0;
+
     blocker_distance_point(shadowCoords.xyz, index, light_size_uv, average_blocker_depth, num_blockers);
     if(num_blockers < 1)
         return 1.0;
+
+    const float dist = length(shadowCoords);
+    const float penumbraWidth = penumbra_size(dist, average_blocker_depth);
     
-    const float depth = length(shadowCoords);
-    const float penumbraWidth = penumbra_size(-depth, average_blocker_depth);
-    
-    const float uvRadius = penumbraWidth * light_size_uv;
+    const float uvRadius = penumbraWidth * light_size_uv / dist;
     return pcf_point(shadowCoords, index, uvRadius);
 }
 #endif
@@ -286,7 +295,7 @@ ComputedLightInformation calculate_point(Light light) {
         shadow = (dist <= sampledDist + 0.05) ? 1.0 : 0.0;
 #endif
 #ifdef SHADOW_FILTER_PCF
-        shadow = pcf_point(lightVec, int(light.shadowsEnable.z), 1.0);
+        shadow = pcf_point(lightVec, int(light.shadowsEnable.z), 0.05);
 #endif
 #ifdef SHADOW_FILTER_PCSS
         shadow = pcss_point(lightVec, int(light.shadowsEnable.z), light.shadowsEnable.y);

example/src/example.cpp

@@ -20,11 +20,13 @@ void ExampleApp::initialize_render() {
 
     camera_obj = scene->add_object();
     auto& camera = scene->add<Camera>(camera_obj);
+    camera.near = 0.1f;
 
     auto sun_obj = scene->add_object();
     auto& sun = scene->add<Light>(sun_obj);
     sun.type = Light::Type::Point;
     sun.use_dynamic_shadows = true;
+    sun.size = 25.0f;
     auto& sun_trans = scene->get<Transform>(sun_obj);
     sun_trans.position = {-2, 5, 1};
 
@@ -33,6 +35,7 @@ void ExampleApp::initialize_render() {
     second_sun.type = Light::Type::Point;
     second_sun.color = {1, 0, 0};
     second_sun.use_dynamic_shadows = true;
+    second_sun.size = 25.0f;
     scene->get<Transform>(second_sun_obj).position = {-14, 1, -1};
 
     auto third_sun_obj = scene->add_object();
@@ -40,6 +43,7 @@ void ExampleApp::initialize_render() {
     third_sun.type = Light::Type::Point;
     third_sun.color = {0, 0, 1};
     third_sun.use_dynamic_shadows = true;
+    third_sun.size = 25.0f;
     scene->get<Transform>(third_sun_obj).position = {3, 1, -1};
 
     main_object = scene->add_object();