add tonemapping shaders

shader/Functions/gamma.glsl

@@ -0,0 +1,21 @@
+const float GAMMA = 2.2;
+const float INV_GAMMA = 1.0 / GAMMA;
+
+// linear to sRGB approximation
+// see http://chilliant.blogspot.com/2012/08/srgb-approximations-for-hlsl.html
+vec3 linearTosRGB(vec3 color)
+{
+    return pow(color, vec3(INV_GAMMA));
+}
+
+// sRGB to linear approximation
+// see http://chilliant.blogspot.com/2012/08/srgb-approximations-for-hlsl.html
+vec3 sRGBToLinear(vec3 srgbIn)
+{
+    return vec3(pow(srgbIn.xyz, vec3(GAMMA)));
+}
+
+vec4 sRGBToLinear(vec4 srgbIn)
+{
+    return vec4(sRGBToLinear(srgbIn.xyz), srgbIn.w);
+}

shader/ToneMap/ACES.glsl

@@ -0,0 +1,11 @@
+// ACES tone map
+// see: https://knarkowicz.wordpress.com/2016/01/06/aces-filmic-tone-mapping-curve/
+vec3 ToneMapping(vec3 color)
+{
+    const float A = 2.51;
+    const float B = 0.03;
+    const float C = 2.43;
+    const float D = 0.59;
+    const float E = 0.14;
+    return linearTosRGB(clamp((color * (A * color + B)) / (color * (C * color + D) + E), 0.0, 1.0));
+}

shader/ToneMap/HejlRichard.glsl

@@ -0,0 +1,7 @@
+// Hejl Richard tone map
+// see: http://filmicworlds.com/blog/filmic-tonemapping-operators/
+vec3 ToneMapping(vec3 color)
+{
+    color = max(vec3(0.0), color - vec3(0.004));
+    return (color*(6.2*color+.5))/(color*(6.2*color+1.7)+0.06);
+}

shader/ToneMap/Linear.glsl

@@ -0,0 +1,6 @@
+vec3 ToneMapping(vec3 color)
+{
+	color = clamp(u_Exposure * color, 0., 1.);
+
+	return linearTosRGB(color);
+}

shader/ToneMap/LumaBasedReinhard.glsl

@@ -0,0 +1,8 @@
+vec3 ToneMapping(vec3 color)
+{
+	float luma = dot(color, vec3(0.2126, 0.7152, 0.0722));
+	float toneMappedLuma = luma / (1. + luma);
+	color *= toneMappedLuma / luma;
+
+	return linearTosRGB(color);
+}

shader/ToneMap/RomBinDaHouse.glsl

@@ -0,0 +1,6 @@
+vec3 ToneMapping(vec3 color)
+{
+    color = exp( -1.0 / ( 2.72*color + 0.15 ) );
+
+	return linearTosRGB(color);
+}

shader/ToneMap/SimpleReinhard.glsl

@@ -0,0 +1,6 @@
+vec3 ToneMapping(vec3 color)
+{
+	color *= u_Exposure/(1. + color / u_Exposure);
+
+	return linearTosRGB(color);
+}

shader/ToneMap/Uncharted2.glsl

@@ -0,0 +1,20 @@
+// Uncharted 2 tone map
+// see: http://filmicworlds.com/blog/filmic-tonemapping-operators/
+vec3 toneMapUncharted2Impl(vec3 color)
+{
+    const float A = 0.15;
+    const float B = 0.50;
+    const float C = 0.10;
+    const float D = 0.20;
+    const float E = 0.02;
+    const float F = 0.30;
+    return ((color*(A*color+C*B)+D*E)/(color*(A*color+B)+D*F))-E/F;
+}
+
+vec3 ToneMapping(vec3 color)
+{
+    const float W = 11.2;
+    color = toneMapUncharted2Impl(color * 2.0);
+    vec3 whiteScale = 1.0 / toneMapUncharted2Impl(vec3(W));
+    return linearTosRGB(color * whiteScale);
+}

shader/ToneMap/WhitePreservingLumaBasedReinhard.glsl

@@ -0,0 +1,9 @@
+vec3 ToneMapping(vec3 color)
+{
+	float white = 2.;
+	float luma = dot(color, vec3(0.2126, 0.7152, 0.0722));
+	float toneMappedLuma = luma * (1. + luma / (white*white)) / (1. + luma);
+	color *= toneMappedLuma / luma;
+
+	return linearTosRGB(color);
+}

shader/ToneMapping.glsl

@@ -1,4 +1,4 @@
-/*
+/*
 
 This shader experiments the effect of different tone mapping operators.
 This is still a work in progress.
@@ -17,69 +17,44 @@ Zavie
 
 */
 
-vec3 linearToneMapping(vec3 color)
-{
-	float exposure = 1.;
-	color = clamp(exposure * color, 0., 1.);
-	color = pow(color, vec3(1. / gamma));
-	return color;
-}
+uniform float u_Exposure;
 
-vec3 simpleReinhardToneMapping(vec3 color)
-{
-	float exposure = 1.5;
-	color *= exposure/(1. + color / exposure);
-	color = pow(color, vec3(1. / gamma));
-	return color;
-}
 
-vec3 lumaBasedReinhardToneMapping(vec3 color)
+vec3 toneMap(vec3 color)
 {
-	float luma = dot(color, vec3(0.2126, 0.7152, 0.0722));
-	float toneMappedLuma = luma / (1. + luma);
-	color *= toneMappedLuma / luma;
-	color = pow(color, vec3(1. / gamma));
-	return color;
-}
+    color *= u_Exposure;
 
-vec3 whitePreservingLumaBasedReinhardToneMapping(vec3 color)
-{
-	float white = 2.;
-	float luma = dot(color, vec3(0.2126, 0.7152, 0.0722));
-	float toneMappedLuma = luma * (1. + luma / (white*white)) / (1. + luma);
-	color *= toneMappedLuma / luma;
-	color = pow(color, vec3(1. / gamma));
-	return color;
-}
+#ifdef TONEMAP_UNCHARTED
+    return toneMapUncharted(color);
+#endif
 
-vec3 RomBinDaHouseToneMapping(vec3 color)
-{
-    color = exp( -1.0 / ( 2.72*color + 0.15 ) );
-	color = pow(color, vec3(1. / gamma));
-	return color;
-}
+#ifdef TONEMAP_HEJLRICHARD
+    return toneMapHejlRichard(color);
+#endif
 
-vec3 filmicToneMapping(vec3 color)
-{
-	color = max(vec3(0.), color - vec3(0.004));
-	color = (color * (6.2 * color + .5)) / (color * (6.2 * color + 1.7) + 0.06);
-	return color;
-}
+#ifdef TONEMAP_ACES
+    return toneMapACES(color);
+#endif
 
-vec3 Uncharted2ToneMapping(vec3 color)
-{
-	float A = 0.15;
-	float B = 0.50;
-	float C = 0.10;
-	float D = 0.20;
-	float E = 0.02;
-	float F = 0.30;
-	float W = 11.2;
-	float exposure = 2.;
-	color *= exposure;
-	color = ((color * (A * color + C * B) + D * E) / (color * (A * color + B) + D * F)) - E / F;
-	float white = ((W * (A * W + C * B) + D * E) / (W * (A * W + B) + D * F)) - E / F;
-	color /= white;
-	color = pow(color, vec3(1. / gamma));
-	return color;
+#ifdef TONEMAP_LINEAR
+    return linearToneMapping(color);
+#endif//TONEMAP_LINEAR
+
+#ifdef TONEMAP_SIMPLE_REINHARD
+    return simpleReinhardToneMapping(color)
+#endif//TONEMAP_SIMPLE_REINHARD
+
+#ifdef TONEMAP_LUMA_BASED_REINHARD
+    return lumaBasedReinhardToneMapping(color)
+#endif//TONE_MAP_LUMA_BASED_REINHARD
+
+#ifdef TONEMAP_WHITE_PRESERVING_LUMA_BASED_REINHARD
+    return whitePreservingLumaBasedReinhardToneMapping(color)
+#endif//TONEMAP_WHITE_PRESERVING_LUMA_BASED_REINHARD
+
+#ifdef TONEMAP_ROM_BIN_DA_HOUSE
+    return RomBinDaHouseToneMapping(color)
+#endif//TONEMAP_ROM_BIN_DA_HOUSE
+
+    return linearTosRGB(color);
 }

shader/brdf.glsl

@@ -0,0 +1,159 @@
+//
+// Fresnel
+//
+// http://graphicrants.blogspot.com/2013/08/specular-brdf-reference.html
+// https://github.com/wdas/brdf/tree/master/src/brdfs
+// https://google.github.io/filament/Filament.md.html
+//
+
+vec3 F_None(vec3 f0, vec3 f90, float VdotH)
+{
+    return f0;
+}
+
+// The following equation models the Fresnel reflectance term of the spec equation (aka F())
+// Implementation of fresnel from [4], Equation 15
+vec3 F_Schlick(vec3 f0, vec3 f90, float VdotH)
+{
+    return f0 + (f90 - f0) * pow(clamp(1.0 - VdotH, 0.0, 1.0), 5.0);
+}
+
+vec3 F_CookTorrance(vec3 f0, vec3 f90, float VdotH)
+{
+    vec3 f0_sqrt = sqrt(f0);
+    vec3 ior = (1.0 + f0_sqrt) / (1.0 - f0_sqrt);
+    vec3 c = vec3(VdotH);
+    vec3 g = sqrt(sq(ior) + c*c - 1.0);
+    return 0.5 * pow(g-c, vec3(2.0)) / pow(g+c, vec3(2.0)) * (1.0 + pow(c*(g+c) - 1.0, vec3(2.0)) / pow(c*(g-c) + 1.0, vec3(2.0)));
+}
+
+// Smith Joint GGX
+// Note: Vis = G / (4 * NdotL * NdotV)
+// see Eric Heitz. 2014. Understanding the Masking-Shadowing Function in Microfacet-Based BRDFs. Journal of Computer Graphics Techniques, 3
+// see Real-Time Rendering. Page 331 to 336.
+// see https://google.github.io/filament/Filament.md.html#materialsystem/specularbrdf/geometricshadowing(specularg)
+float V_GGX(float NdotL, float NdotV, float alphaRoughness)
+{
+    float alphaRoughnessSq = alphaRoughness * alphaRoughness;
+
+    float GGXV = NdotL * sqrt(NdotV * NdotV * (1.0 - alphaRoughnessSq) + alphaRoughnessSq);
+    float GGXL = NdotV * sqrt(NdotL * NdotL * (1.0 - alphaRoughnessSq) + alphaRoughnessSq);
+
+    float GGX = GGXV + GGXL;
+    if (GGX > 0.0)
+    {
+        return 0.5 / GGX;
+    }
+    return 0.0;
+}
+
+// Anisotropic GGX visibility function, with height correlation.
+// T: Tanget, B: Bi-tanget
+float V_GGX_anisotropic(float NdotL, float NdotV, float BdotV, float TdotV, float TdotL, float BdotL, float anisotropy, float at, float ab)
+{
+    float GGXV = NdotL * length(vec3(at * TdotV, ab * BdotV, NdotV));
+    float GGXL = NdotV * length(vec3(at * TdotL, ab * BdotL, NdotL));
+    float v = 0.5 / (GGXV + GGXL);
+    return clamp(v, 0.0, 1.0);
+}
+
+// https://github.com/google/filament/blob/master/shaders/src/brdf.fs#L136
+// https://github.com/google/filament/blob/master/libs/ibl/src/CubemapIBL.cpp#L179
+// Note: Google call it V_Ashikhmin and V_Neubelt
+float V_Ashikhmin(float NdotL, float NdotV)
+{
+    return clamp(1.0 / (4.0 * (NdotL + NdotV - NdotL * NdotV)),0.0,1.0);
+}
+
+// https://github.com/google/filament/blob/master/shaders/src/brdf.fs#L131
+float V_Kelemen(float LdotH)
+{
+    // Kelemen 2001, "A Microfacet Based Coupled Specular-Matte BRDF Model with Importance Sampling"
+    return 0.25 / (LdotH * LdotH);
+}
+
+// The following equation(s) model the distribution of microfacet normals across the area being drawn (aka D())
+// Implementation from "Average Irregularity Representation of a Roughened Surface for Ray Reflection" by T. S. Trowbridge, and K. P. Reitz
+// Follows the distribution function recommended in the SIGGRAPH 2013 course notes from EPIC Games [1], Equation 3.
+float D_GGX(float NdotH, float alphaRoughness)
+{
+    float alphaRoughnessSq = alphaRoughness * alphaRoughness;
+    float f = (NdotH * NdotH) * (alphaRoughnessSq - 1.0) + 1.0;
+    return alphaRoughnessSq / (M_PI * f * f);
+}
+
+// Anisotropic GGX NDF with a single anisotropy parameter controlling the normal orientation.
+// See https://google.github.io/filament/Filament.html#materialsystem/anisotropicmodel
+// T: Tanget, B: Bi-tanget
+float D_GGX_anisotropic(float NdotH, float TdotH, float BdotH, float anisotropy, float at, float ab)
+{
+    float a2 = at * ab;
+    vec3 f = vec3(ab * TdotH, at * BdotH, a2 * NdotH);
+    float w2 = a2 / dot(f, f);
+    return a2 * w2 * w2 / M_PI;
+}
+
+float D_Ashikhmin(float NdotH, float alphaRoughness)
+{
+    // Ashikhmin 2007, "Distribution-based BRDFs"
+    float a2 = alphaRoughness * alphaRoughness;
+    float cos2h = NdotH * NdotH;
+    float sin2h = 1.0 - cos2h;
+    float sin4h = sin2h * sin2h;
+    float cot2 = -cos2h / (a2 * sin2h);
+    return 1.0 / (M_PI * (4.0 * a2 + 1.0) * sin4h) * (4.0 * exp(cot2) + sin4h);
+}
+
+//Sheen implementation-------------------------------------------------------------------------------------
+// See  https://github.com/sebavan/glTF/tree/KHR_materials_sheen/extensions/2.0/Khronos/KHR_materials_sheen
+
+// Estevez and Kulla http://www.aconty.com/pdf/s2017_pbs_imageworks_sheen.pdf
+float D_Charlie(float sheenRoughness, float NdotH)
+{
+    sheenRoughness = max(sheenRoughness, 0.000001); //clamp (0,1]
+    float alphaG = sheenRoughness * sheenRoughness;
+    float invR = 1.0 / alphaG;
+    float cos2h = NdotH * NdotH;
+    float sin2h = 1.0 - cos2h;
+    return (2.0 + invR) * pow(sin2h, invR * 0.5) / (2.0 * M_PI);
+}
+
+//https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#acknowledgments AppendixB
+vec3 BRDF_lambertian(vec3 f0, vec3 f90, vec3 diffuseColor, float VdotH)
+{
+    // see https://seblagarde.wordpress.com/2012/01/08/pi-or-not-to-pi-in-game-lighting-equation/
+    return (1.0 - F_Schlick(f0, f90, VdotH)) * (diffuseColor / M_PI);
+}
+
+//  https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#acknowledgments AppendixB
+vec3 BRDF_specularGGX(vec3 f0, vec3 f90, float alphaRoughness, float VdotH, float NdotL, float NdotV, float NdotH)
+{
+    vec3 F = F_Schlick(f0, f90, VdotH);
+    float Vis = V_GGX(NdotL, NdotV, alphaRoughness);
+    float D = D_GGX(NdotH, alphaRoughness);
+
+    return F * Vis * D;
+}
+
+vec3 BRDF_specularAnisotropicGGX(vec3 f0, vec3 f90, float alphaRoughness, float VdotH, float NdotL, float NdotV, float NdotH,
+    float BdotV, float TdotV, float TdotL, float BdotL, float TdotH, float BdotH, float anisotropy)
+{
+    // Roughness along tangent and bitangent.
+    // Christopher Kulla and Alejandro Conty. 2017. Revisiting Physically Based Shading at Imageworks
+    float at = max(alphaRoughness * (1.0 + anisotropy), 0.00001);
+    float ab = max(alphaRoughness * (1.0 - anisotropy), 0.00001);
+
+    vec3 F = F_Schlick(f0, f90, VdotH);
+    float V = V_GGX_anisotropic(NdotL, NdotV, BdotV, TdotV, TdotL, BdotL, anisotropy, at, ab);
+    float D = D_GGX_anisotropic(NdotH, TdotH, BdotH, anisotropy, at, ab);
+
+    return F * V * D;
+}
+
+// f_sheen
+vec3 BRDF_specularSheen(vec3 sheenColor, float sheenIntensity, float sheenRoughness, float NdotL, float NdotV, float NdotH)
+{
+    float sheenDistribution = D_Charlie(sheenRoughness, NdotH);
+    float sheenVisibility = V_Ashikhmin(NdotL, NdotV);
+    return sheenColor * sheenIntensity * sheenDistribution * sheenVisibility;
+}

shader/cnmr.lightmodel

@@ -0,0 +1,17 @@
+//该文件用于描述光照模型
+[intro]
+author=
+infomation=
+
+[attr]  //该段用于描述该着色最终会需要那些数据
+        //会根据最终需求，数据可能来自纹理，可能来自顶点，或是全局固定
+
+    vec3 BaseColor;
+    vec3 Normal;
+    float Metallic;
+    float Roughness;
+
+[compute]   //计算函数体
+{
+
+}

shader/full_screen_rectangle.vert.glsl

@@ -0,0 +1,12 @@
+#version 450 core
+
+layout(location = 0) in vec2 Vertex;
+
+layout(location = 0) out vec2 FragmentPosition;
+
+void main()
+{
+    gl_Position=vec4(Vertex,0.0,1.0);
+
+    FragmentPosition=(Vertex+1.0)/2.0;
+}

shader/gbuffer intro.txt

@@ -0,0 +1,45 @@
+[attr]  //该段用于描述该材质最终会需要那些数据
+
+    vec3 BaseColor;
+    vec3 Normal;
+    float Metallic;
+    float Roughness;
+
+[framebuffer]   //该段用于描述当前shader会输出到几个Framebuffer上
+
+    //如果是前向渲染，一般只有一个Framebuffer
+
+    vec4 FinalColor;
+
+    //如果是延迟渲染，则代表GBuffer，可能存在多个framebuffer
+
+    vec4 gb_color_metallic;
+    vec4 gb_normal_roughness;
+
+[attr_to_fb]    //该段用于描述attr如何转换到framebuffer上
+
+    //如果是UI之类直接上色的，那会比较颜色
+
+    FinalColor=vec4(BaseColor,1.0);
+
+    //如果是前向渲染
+
+    FinalColor=BRDF(BaseColor,Normal,Metallic,Roughness);
+
+    //如果是延迟渲染
+
+    gb_color_metallic   =vec4(BaseColor,Metallic);
+    gb_normal_roughness =vec4(Normal,   Roughness);
+
+[gb_to_attr]    //该段为延迟渲染独有，用于表示如何从gbuffer分解成独立数据
+
+    vec4 gb_cm=texture(gb_color_metallic,FragmentPosition);
+    vec4 gb_nr=texture(gb_normal_roughness,FragmentPosition);
+
+    BaseColor =gb_cm.rgb;
+    Metallic  =gb_cm.a;
+
+    Normal    =gb_nr.rgb;
+    Roughness =gb_nr.a;
+
+    gl_FragColor=BRDF(BaseColor,Normal,Metallic,Roughness);

shader/primitive.vert

@@ -0,0 +1,129 @@
+#include <animation.glsl>
+
+in vec3 a_Position;
+out vec3 v_Position;
+
+#ifdef HAS_NORMALS
+in vec3 a_Normal;
+#endif
+
+#ifdef HAS_TANGENTS
+in vec4 a_Tangent;
+#endif
+
+#ifdef HAS_NORMALS
+#ifdef HAS_TANGENTS
+out mat3 v_TBN;
+#else
+out vec3 v_Normal;
+#endif
+#endif
+
+#ifdef HAS_UV_SET1
+in vec2 a_UV1;
+#endif
+
+#ifdef HAS_UV_SET2
+in vec2 a_UV2;
+#endif
+
+out vec2 v_UVCoord1;
+out vec2 v_UVCoord2;
+
+#ifdef HAS_VERTEX_COLOR_VEC3
+in vec3 a_Color;
+out vec3 v_Color;
+#endif
+
+#ifdef HAS_VERTEX_COLOR_VEC4
+in vec4 a_Color;
+out vec4 v_Color;
+#endif
+
+uniform mat4 u_ViewProjectionMatrix;
+uniform mat4 u_ModelMatrix;
+uniform mat4 u_NormalMatrix;
+
+vec4 getPosition()
+{
+    vec4 pos = vec4(a_Position, 1.0);
+
+#ifdef USE_MORPHING
+    pos += getTargetPosition();
+#endif
+
+#ifdef USE_SKINNING
+    pos = getSkinningMatrix() * pos;
+#endif
+
+    return pos;
+}
+
+#ifdef HAS_NORMALS
+vec3 getNormal()
+{
+    vec3 normal = a_Normal;
+
+#ifdef USE_MORPHING
+    normal += getTargetNormal();
+#endif
+
+#ifdef USE_SKINNING
+    normal = mat3(getSkinningNormalMatrix()) * normal;
+#endif
+
+    return normalize(normal);
+}
+#endif
+
+#ifdef HAS_TANGENTS
+vec3 getTangent()
+{
+    vec3 tangent = a_Tangent.xyz;
+
+#ifdef USE_MORPHING
+    tangent += getTargetTangent();
+#endif
+
+#ifdef USE_SKINNING
+    tangent = mat3(getSkinningMatrix()) * tangent;
+#endif
+
+    return normalize(tangent);
+}
+#endif
+
+void main()
+{
+    vec4 pos = u_ModelMatrix * getPosition();
+    v_Position = vec3(pos.xyz) / pos.w;
+
+    #ifdef HAS_NORMALS
+    #ifdef HAS_TANGENTS
+        vec3 tangent = getTangent();
+        vec3 normalW = normalize(vec3(u_NormalMatrix * vec4(getNormal(), 0.0)));
+        vec3 tangentW = normalize(vec3(u_ModelMatrix * vec4(tangent, 0.0)));
+        vec3 bitangentW = cross(normalW, tangentW) * a_Tangent.w;
+        v_TBN = mat3(tangentW, bitangentW, normalW);
+    #else // !HAS_TANGENTS
+        v_Normal = normalize(vec3(u_NormalMatrix * vec4(getNormal(), 0.0)));
+    #endif
+    #endif // !HAS_NORMALS
+
+    v_UVCoord1 = vec2(0.0, 0.0);
+    v_UVCoord2 = vec2(0.0, 0.0);
+
+    #ifdef HAS_UV_SET1
+        v_UVCoord1 = a_UV1;
+    #endif
+
+    #ifdef HAS_UV_SET2
+        v_UVCoord2 = a_UV2;
+    #endif
+
+    #if defined(HAS_VERTEX_COLOR_VEC3) || defined(HAS_VERTEX_COLOR_VEC4)
+        v_Color = a_Color;
+    #endif
+
+    gl_Position = u_ViewProjectionMatrix * pos;
+}

shader/r_composition.frag

@@ -0,0 +1,55 @@
+#version 460 core
+/**
+ * Copyright (c) 2018-2020 www.hyzgame.com
+ *
+ * Create by ShaderMaker
+ */
+layout(push_constant) uniform Consts
+{
+    mat4 local_to_world;
+    mat3 normal;
+    vec3 object_position;
+    vec3 object_size;
+} pc;
+layout(binding = 0) uniform WorldMatrix     // hgl/math/Math.h
+{
+    mat4 ortho;
+
+    mat4 projection;
+    mat4 inverse_projection;
+
+    mat4 modelview;
+    mat4 inverse_modelview;
+
+    mat4 mvp;
+    mat4 inverse_mvp;
+
+    vec4 view_pos;
+} world;
+
+layout(binding=0) uniform sampler2D rb_depth;
+layout(binding=1) uniform sampler2D gb_color_metallic;
+layout(binding=2) uniform sampler2D gb_normal_roughness;
+
+layout(location=0) in vec2 vs_out_position;
+layout(location=0) out vec4 FragColor;
+
+void main()
+{
+    vec3 BaseColor;
+    vec3 Normal;
+    float Metallic;
+    float Roughness;
+
+    vec4 gb_cm=texture(gb_color_metallic,FragmentPosition);
+    vec4 gb_cr=texture(gb_normal_roughness,FragmentPosition);
+    BaseColor =gb_cm.rgb;
+    Metallic  =gb_cm.a;
+    Normal    =gb_cr.rgb;
+    Roughness =gb_cr.a;
+
+//[Begin] Your code------------------------------------
+
+//[End] Your code--------------------------------------
+    FragColor=
+}

shader/r_composition.vert

@@ -0,0 +1,17 @@
+#version 460 core
+/**
+ * Copyright (c) 2018-2020 www.hyzgame.com
+ *
+ * Create by ShaderMaker
+ */
+
+layout(location = 0) in vec2 Vertex;
+
+layout(location = 0) out vec2 vs_out_position;
+
+void main()
+{
+    gl_Position=vec4(Vertex,0.0,1.0);
+
+    vs_out_position=(Vertex+1.0)/2.0;
+}

shader/r_gbuffer.frag

@@ -0,0 +1,44 @@
+#version 460 core
+/**
+ * Copyright (c) 2018-2020 www.hyzgame.com
+ *
+ * Create by ShaderMaker
+ */
+layout(push_constant) uniform Consts
+{
+    mat4 local_to_world;
+    mat3 normal;
+    vec3 object_position;
+    vec3 object_size;
+} pc;
+layout(binding = 0) uniform WorldMatrix     // hgl/math/Math.h
+{
+    mat4 ortho;
+
+    mat4 projection;
+    mat4 inverse_projection;
+
+    mat4 modelview;
+    mat4 inverse_modelview;
+
+    mat4 mvp;
+    mat4 inverse_mvp;
+
+    vec4 view_pos;
+} world;
+
+layout(location=0) out vec4 gb_color_metallic;
+layout(location=1) out vec4 gb_normal_roughness;
+
+void main()
+{
+    vec3 BaseColor;
+    vec3 Normal;
+    float Metallic;
+    float Roughness;
+//[Begin] Your code------------------------------------
+
+//[End] Your code--------------------------------------
+    gb_color_metallic   =vec4(BaseColor,Metallic);
+    gb_normal_roughness =vec4(Normal,   Roughness);
+}