redesigned r_shadow_bouncegrid_static_directionalshading - it now uses 6

[xonotic/darkplaces.git] / shader_glsl.h

diff --git a/shader_glsl.h b/shader_glsl.h
index 1b0c1b18311b528ed1aa54097f593bd9fe2b1d3f..ae82899ddfedaeddb7e5749adc46256b3ba2d070 100644 (file)
--- a/shader_glsl.h
+++ b/shader_glsl.h
@@ -25,6 +25,7 @@
 "# define dp_texture2D texture\n"
 "# define dp_texture3D texture\n"
 "# define dp_textureCube texture\n"
+"# define dp_shadow2D(a,b) texture(a,b)\n"
 "#else\n"
 "# ifdef FRAGMENT_SHADER\n"
 "#  define dp_FragColor gl_FragColor\n"
@@ -37,6 +38,7 @@
 "# define dp_texture2D texture2D\n"
 "# define dp_texture3D texture3D\n"
 "# define dp_textureCube textureCube\n"
+"# define dp_shadow2D(a,b) float(shadow2D(a,b))\n"
 "#endif\n"
 "\n"
 "#ifdef VERTEX_SHADER\n"
@@ -346,15 +348,12 @@
 "#ifdef FRAGMENT_SHADER\n"
 "uniform sampler2D Texture_Normal;\n"
 "uniform sampler2D Texture_Refraction;\n"
-"uniform sampler2D Texture_Reflection;\n"
 "\n"
 "uniform mediump vec4 DistortScaleRefractReflect;\n"
 "uniform mediump vec4 ScreenScaleRefractReflect;\n"
 "uniform mediump vec4 ScreenCenterRefractReflect;\n"
 "uniform mediump vec4 RefractColor;\n"
 "uniform mediump vec4 ReflectColor;\n"
-"uniform mediump float ReflectFactor;\n"
-"uniform mediump float ReflectOffset;\n"
 "uniform highp float ClientTime;\n"
 "#ifdef USENORMALMAPSCROLLBLEND\n"
 "uniform highp vec2 NormalmapScrollBlend;\n"
@@ -368,9 +367,9 @@
 "      #ifdef USENORMALMAPSCROLLBLEND\n"
 "              vec3 normal = dp_texture2D(Texture_Normal, (TexCoord + vec2(0.08, 0.08)*ClientTime*NormalmapScrollBlend.x*0.5)*NormalmapScrollBlend.y).rgb - vec3(1.0);\n"
 "              normal += dp_texture2D(Texture_Normal, (TexCoord + vec2(-0.06, -0.09)*ClientTime*NormalmapScrollBlend.x)*NormalmapScrollBlend.y*0.75).rgb;\n"
-"              vec2 ScreenTexCoord = SafeScreenTexCoord + vec3(normalize(myhalf3(normal))).xy * DistortScaleRefractReflect.zw;\n"
+"              vec2 ScreenTexCoord = SafeScreenTexCoord + vec3(normalize(myhalf3(normal))).xy * DistortScaleRefractReflect.xy;\n"
 "      #else\n"
-"              vec2 ScreenTexCoord = SafeScreenTexCoord + vec3(normalize(myhalf3(offsetMappedTexture2D(Texture_Normal)) - myhalf3(0.5))).xy * DistortScaleRefractReflect.zw;\n"
+"              vec2 ScreenTexCoord = SafeScreenTexCoord + vec3(normalize(myhalf3(dp_texture2D(Texture_Normal, TexCoord)) - myhalf3(0.5))).xy * DistortScaleRefractReflect.xy;\n"
 "      #endif\n"
 "      // FIXME temporary hack to detect the case that the reflection\n"
 "      // gets blackened at edges due to leaving the area that contains actual\n"
@@ -701,11 +700,11 @@
 "\n"
 "#  ifdef USESHADOWSAMPLER\n"
 "#    ifdef USESHADOWMAPPCF\n"
-"#      define texval(x, y) shadow2D(Texture_ShadowMap2D, vec3(center + vec2(x, y)*ShadowMap_TextureScale, shadowmaptc.z)).r  \n"
+"#      define texval(x, y) dp_shadow2D(Texture_ShadowMap2D, vec3(center + vec2(x, y)*ShadowMap_TextureScale, shadowmaptc.z))  \n"
 "      vec2 center = shadowmaptc.xy*ShadowMap_TextureScale;\n"
 "      f = dot(vec4(0.25), vec4(texval(-0.4, 1.0), texval(-1.0, -0.4), texval(0.4, -1.0), texval(1.0, 0.4)));\n"
 "#    else\n"
-"      f = shadow2D(Texture_ShadowMap2D, vec3(shadowmaptc.xy*ShadowMap_TextureScale, shadowmaptc.z)).r;\n"
+"      f = dp_shadow2D(Texture_ShadowMap2D, vec3(shadowmaptc.xy*ShadowMap_TextureScale, shadowmaptc.z));\n"
 "#    endif\n"
 "#  else\n"
 "#    ifdef USESHADOWMAPPCF\n"
@@ -915,22 +914,26 @@
 "      fade *= ShadowMapCompare(CubeVector);\n"
 "#endif\n"
 "\n"
-"#ifdef USEDIFFUSE\n"
-"      gl_FragData[0] = vec4((DeferredColor_Ambient + DeferredColor_Diffuse * diffuse) * fade, 1.0);\n"
-"#else\n"
-"      gl_FragData[0] = vec4(DeferredColor_Ambient * fade, 1.0);\n"
-"#endif\n"
 "#ifdef USESPECULAR\n"
+"      gl_FragData[0] = vec4((DeferredColor_Ambient + DeferredColor_Diffuse * diffuse) * fade, 1.0);\n"
 "      gl_FragData[1] = vec4(DeferredColor_Specular * (specular * fade), 1.0);\n"
-"#else\n"
-"      gl_FragData[1] = vec4(0.0, 0.0, 0.0, 1.0);\n"
-"#endif\n"
-"\n"
 "# ifdef USECUBEFILTER\n"
 "      vec3 cubecolor = dp_textureCube(Texture_Cube, CubeVector).rgb;\n"
 "      gl_FragData[0].rgb *= cubecolor;\n"
 "      gl_FragData[1].rgb *= cubecolor;\n"
 "# endif\n"
+"#else\n"
+"# ifdef USEDIFFUSE\n"
+"      gl_FragColor = vec4((DeferredColor_Ambient + DeferredColor_Diffuse * diffuse) * fade, 1.0);\n"
+"# else\n"
+"      gl_FragColor = vec4(DeferredColor_Ambient * fade, 1.0);\n"
+"# endif\n"
+"# ifdef USECUBEFILTER\n"
+"      vec3 cubecolor = dp_textureCube(Texture_Cube, CubeVector).rgb;\n"
+"      gl_FragColor.rgb *= cubecolor;\n"
+"# endif\n"
+"#endif\n"
+"      \n"
 "}\n"
 "#endif // FRAGMENT_SHADER\n"
 "#else // !MODE_DEFERREDLIGHTSOURCE\n"
@@ -969,6 +972,9 @@
 "\n"
 "#ifdef USEBOUNCEGRID\n"
 "      BounceGridTexCoord = vec3(BounceGridMatrix * Attrib_Position);\n"
+"#ifdef USEBOUNCEGRIDDIRECTIONAL\n"
+"      BounceGridTexCoord.z *= 0.125;\n"
+"#endif\n"
 "#endif\n"
 "\n"
 "#ifdef MODE_LIGHTSOURCE\n"
@@ -1073,6 +1079,7 @@
 "#ifdef USEBOUNCEGRID\n"
 "uniform sampler3D Texture_BounceGrid;\n"
 "uniform float BounceGridIntensity;\n"
+"uniform highp mat4 BounceGridMatrix;\n"
 "#endif\n"
 "uniform highp float ClientTime;\n"
 "#ifdef USENORMALMAPSCROLLBLEND\n"
@@ -1267,14 +1274,24 @@
 "\n"
 "#ifdef USEBOUNCEGRID\n"
 "#ifdef USEBOUNCEGRIDDIRECTIONAL\n"
-"      myhalf4 bouncegrid_coeff1 = myhalf4(dp_texture3D(Texture_BounceGrid, BounceGridTexCoord                       )) * 2.0 + myhalf4(-1.0, -1.0, -1.0, -1.0);\n"
-"      myhalf4 bouncegrid_coeff2 = myhalf4(dp_texture3D(Texture_BounceGrid, BounceGridTexCoord + vec3(0.0, 0.0, 0.25))) * 2.0 + myhalf4(-1.0, -1.0, -1.0, -1.0);\n"
-"      myhalf4 bouncegrid_coeff3 = myhalf4(dp_texture3D(Texture_BounceGrid, BounceGridTexCoord + vec3(0.0, 0.0, 0.50))) * 2.0 + myhalf4(-1.0, -1.0, -1.0, -1.0);\n"
-"      // bouncegrid_coeff4 is the bentnormal (average light direction), if that is useful for anything (can be used for specular)\n"
-"//    myhalf4 bouncegrid_coeff4 = myhalf4(dp_texture3D(Texture_BounceGrid, BounceGridTexCoord + vec3(0.0, 0.0, 0.75))) * 2.0 + myhalf4(-1.0, -1.0, -1.0, -1.0);\n"
-"      myhalf4 bouncegrid_dir = myhalf4((surfacenormal.x * VectorS.xyz + surfacenormal.y * VectorT.xyz + surfacenormal.z * VectorR.xyz), 1.0);\n"
-"      myhalf3 bouncegrid_light = myhalf3(dot(bouncegrid_coeff1, bouncegrid_dir), dot(bouncegrid_coeff2, bouncegrid_dir), dot(bouncegrid_coeff3, bouncegrid_dir));\n"
+"//    myhalf4 bouncegrid_coeff1 = myhalf4(dp_texture3D(Texture_BounceGrid, BounceGridTexCoord                        ));\n"
+"//    myhalf4 bouncegrid_coeff2 = myhalf4(dp_texture3D(Texture_BounceGrid, BounceGridTexCoord + vec3(0.0, 0.0, 0.125))) * 2.0 + myhalf4(-1.0, -1.0, -1.0, -1.0);\n"
+"      myhalf4 bouncegrid_coeff3 = myhalf4(dp_texture3D(Texture_BounceGrid, BounceGridTexCoord + vec3(0.0, 0.0, 0.250)));\n"
+"      myhalf4 bouncegrid_coeff4 = myhalf4(dp_texture3D(Texture_BounceGrid, BounceGridTexCoord + vec3(0.0, 0.0, 0.375)));\n"
+"      myhalf4 bouncegrid_coeff5 = myhalf4(dp_texture3D(Texture_BounceGrid, BounceGridTexCoord + vec3(0.0, 0.0, 0.500)));\n"
+"      myhalf4 bouncegrid_coeff6 = myhalf4(dp_texture3D(Texture_BounceGrid, BounceGridTexCoord + vec3(0.0, 0.0, 0.625)));\n"
+"      myhalf4 bouncegrid_coeff7 = myhalf4(dp_texture3D(Texture_BounceGrid, BounceGridTexCoord + vec3(0.0, 0.0, 0.750)));\n"
+"      myhalf4 bouncegrid_coeff8 = myhalf4(dp_texture3D(Texture_BounceGrid, BounceGridTexCoord + vec3(0.0, 0.0, 0.875)));\n"
+"      myhalf3 bouncegrid_dir = normalize(mat3(BounceGridMatrix) * (surfacenormal.x * VectorS.xyz + surfacenormal.y * VectorT.xyz + surfacenormal.z * VectorR.xyz));\n"
+"      myhalf3 bouncegrid_dirp = max(myhalf3(0.0, 0.0, 0.0), bouncegrid_dir);\n"
+"      myhalf3 bouncegrid_dirn = max(myhalf3(0.0, 0.0, 0.0), -bouncegrid_dir);\n"
+"//    bouncegrid_dirp  = bouncegrid_dirn = myhalf3(1.0,1.0,1.0);\n"
+"      myhalf3 bouncegrid_light = myhalf3(\n"
+"              dot(bouncegrid_coeff3.xyz, bouncegrid_dirp) + dot(bouncegrid_coeff6.xyz, bouncegrid_dirn),\n"
+"              dot(bouncegrid_coeff4.xyz, bouncegrid_dirp) + dot(bouncegrid_coeff7.xyz, bouncegrid_dirn),\n"
+"              dot(bouncegrid_coeff5.xyz, bouncegrid_dirp) + dot(bouncegrid_coeff8.xyz, bouncegrid_dirn));\n"
 "      color.rgb += diffusetex * bouncegrid_light * BounceGridIntensity;\n"
+"//    color.rgb = bouncegrid_dir.rgb * 0.5 + vec3(0.5, 0.5, 0.5);\n"
 "#else\n"
 "      color.rgb += diffusetex * myhalf3(dp_texture3D(Texture_BounceGrid, BounceGridTexCoord)) * BounceGridIntensity;\n"
 "#endif\n"
@@ -1298,7 +1315,11 @@
 "      //vec4 ScreenTexCoord = (ModelViewProjectionPosition.xyxy + normalize(myhalf3(offsetMappedTexture2D(Texture_Normal)) - myhalf3(0.5)).xyxy * DistortScaleRefractReflect * 100) * ScreenScaleRefractReflectIW + ScreenCenterRefractReflect;\n"
 "      vec2 SafeScreenTexCoord = ModelViewProjectionPosition.xy * ScreenScaleRefractReflectIW.zw + ScreenCenterRefractReflect.zw;\n"
 "      #ifdef USENORMALMAPSCROLLBLEND\n"
+"# ifdef USEOFFSETMAPPING\n"
+"              vec3 normal = dp_textureGrad(Texture_Normal, (TexCoord + vec2(0.08, 0.08)*ClientTime*NormalmapScrollBlend.x*0.5)*NormalmapScrollBlend.y, dPdx*NormalmapScrollBlend.y, dPdy*NormalmapScrollBlend.y).rgb - vec3(1.0);\n"
+"# else\n"
 "              vec3 normal = dp_texture2D(Texture_Normal, (TexCoord + vec2(0.08, 0.08)*ClientTime*NormalmapScrollBlend.x*0.5)*NormalmapScrollBlend.y).rgb - vec3(1.0);\n"
+"# endif\n"
 "              normal += dp_texture2D(Texture_Normal, (TexCoord + vec2(-0.06, -0.09)*ClientTime*NormalmapScrollBlend.x)*NormalmapScrollBlend.y*0.75).rgb;\n"
 "              vec2 ScreenTexCoord = SafeScreenTexCoord + vec3(normalize(myhalf3(normal))).xy * DistortScaleRefractReflect.zw;\n"
 "      #else\n"