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Diffstat (limited to 'shaders/nexuiz/2.frag')
| -rw-r--r-- | shaders/nexuiz/2.frag | 1015 |
1 files changed, 1015 insertions, 0 deletions
diff --git a/shaders/nexuiz/2.frag b/shaders/nexuiz/2.frag new file mode 100644 index 0000000..f59ae35 --- /dev/null +++ b/shaders/nexuiz/2.frag @@ -0,0 +1,1015 @@ +#define FRAGMENT_SHADER +#define MODE_GENERIC + + + + + + + + + + + + + + + + + + +// ambient+diffuse+specular+normalmap+attenuation+cubemap+fog shader +// written by Forest 'LordHavoc' Hale + +// enable various extensions depending on permutation: + +#ifdef USESHADOWMAPRECT +# extension GL_ARB_texture_rectangle : enable +#endif + +#ifdef USESHADOWMAP2D +# ifdef GL_EXT_gpu_shader4 +# extension GL_EXT_gpu_shader4 : enable +# endif +# ifdef GL_ARB_texture_gather +# extension GL_ARB_texture_gather : enable +# else +# ifdef GL_AMD_texture_texture4 +# extension GL_AMD_texture_texture4 : enable +# endif +# endif +#endif + +#ifdef USESHADOWMAPCUBE +# extension GL_EXT_gpu_shader4 : enable +#endif + +#ifdef USESHADOWSAMPLER +# extension GL_ARB_shadow : enable +#endif + +// common definitions between vertex shader and fragment shader: + +//#ifdef __GLSL_CG_DATA_TYPES +//# define myhalf half +//# define myhalf2 half2 +//# define myhalf3half3 +//# define myhalf4 half4 +//#else +# define myhalf float +# define myhalf2 vec2 +# define myhalf3 vec3 +# define myhalf4 vec4 +//#endif + +#ifdef MODE_DEPTH_OR_SHADOW + +# ifdef VERTEX_SHADER +void main(void) +{ + gl_Position = ftransform(); +} +# endif + +#else +#ifdef MODE_SHOWDEPTH +# ifdef VERTEX_SHADER +void main(void) +{ + gl_Position = ftransform(); + gl_FrontColor = vec4(gl_Position.z, gl_Position.z, gl_Position.z, 1.0); +} +# endif +# ifdef FRAGMENT_SHADER +void main(void) +{ + gl_FragColor = gl_Color; +} +# endif + +#else // !MODE_SHOWDEPTH + +#ifdef MODE_POSTPROCESS +# ifdef VERTEX_SHADER +void main(void) +{ + gl_FrontColor = gl_Color; + gl_Position = ftransform(); + gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0; +#ifdef USEBLOOM + gl_TexCoord[1] = gl_TextureMatrix[1] * gl_MultiTexCoord1; +#endif +} +# endif +# ifdef FRAGMENT_SHADER + +uniform sampler2D Texture_First; +#ifdef USEBLOOM +uniform sampler2D Texture_Second; +#endif +#ifdef USEGAMMARAMPS +uniform sampler2D Texture_GammaRamps; +#endif +#ifdef USESATURATION +uniform float Saturation; +#endif +#ifdef USEVIEWTINT +uniform vec4 TintColor; +#endif +//uncomment these if you want to use them: +uniform vec4 UserVec1; +// uniform vec4 UserVec2; +// uniform vec4 UserVec3; +// uniform vec4 UserVec4; +// uniform float ClientTime; +uniform vec2 PixelSize; +void main(void) +{ + gl_FragColor = texture2D(Texture_First, gl_TexCoord[0].xy); +#ifdef USEBLOOM + gl_FragColor += texture2D(Texture_Second, gl_TexCoord[1].xy); +#endif +#ifdef USEVIEWTINT + gl_FragColor = mix(gl_FragColor, TintColor, TintColor.a); +#endif + +#ifdef USEPOSTPROCESSING +// do r_glsl_dumpshader, edit glsl/default.glsl, and replace this by your own postprocessing if you want +// this code does a blur with the radius specified in the first component of r_glsl_postprocess_uservec1 and blends it using the second component + gl_FragColor += texture2D(Texture_First, gl_TexCoord[0].xy + PixelSize*UserVec1.x*vec2(-0.987688, -0.156434)) * UserVec1.y; + gl_FragColor += texture2D(Texture_First, gl_TexCoord[0].xy + PixelSize*UserVec1.x*vec2(-0.156434, -0.891007)) * UserVec1.y; + gl_FragColor += texture2D(Texture_First, gl_TexCoord[0].xy + PixelSize*UserVec1.x*vec2( 0.891007, -0.453990)) * UserVec1.y; + gl_FragColor += texture2D(Texture_First, gl_TexCoord[0].xy + PixelSize*UserVec1.x*vec2( 0.707107, 0.707107)) * UserVec1.y; + gl_FragColor += texture2D(Texture_First, gl_TexCoord[0].xy + PixelSize*UserVec1.x*vec2(-0.453990, 0.891007)) * UserVec1.y; + gl_FragColor /= (1 + 5 * UserVec1.y); +#endif + +#ifdef USESATURATION + //apply saturation BEFORE gamma ramps, so v_glslgamma value does not matter + myhalf y = dot(gl_FragColor.rgb, vec3(0.299, 0.587, 0.114)); + //gl_FragColor = vec3(y) + (gl_FragColor.rgb - vec3(y)) * Saturation; + gl_FragColor.rgb = mix(vec3(y), gl_FragColor.rgb, Saturation); +#endif + +#ifdef USEGAMMARAMPS + gl_FragColor.r = texture2D(Texture_GammaRamps, vec2(gl_FragColor.r, 0)).r; + gl_FragColor.g = texture2D(Texture_GammaRamps, vec2(gl_FragColor.g, 0)).g; + gl_FragColor.b = texture2D(Texture_GammaRamps, vec2(gl_FragColor.b, 0)).b; +#endif +} +# endif + + +#else +#ifdef MODE_GENERIC +# ifdef VERTEX_SHADER +void main(void) +{ + gl_FrontColor = gl_Color; +# ifdef USEDIFFUSE + gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0; +# endif +# ifdef USESPECULAR + gl_TexCoord[1] = gl_TextureMatrix[1] * gl_MultiTexCoord1; +# endif + gl_Position = ftransform(); +} +# endif +# ifdef FRAGMENT_SHADER + +# ifdef USEDIFFUSE +uniform sampler2D Texture_First; +# endif +# ifdef USESPECULAR +uniform sampler2D Texture_Second; +# endif + +void main(void) +{ + gl_FragColor = gl_Color; +# ifdef USEDIFFUSE + gl_FragColor *= texture2D(Texture_First, gl_TexCoord[0].xy); +# endif + +# ifdef USESPECULAR + vec4 tex2 = texture2D(Texture_Second, gl_TexCoord[1].xy); +# endif +# ifdef USECOLORMAPPING + gl_FragColor *= tex2; +# endif +# ifdef USEGLOW + gl_FragColor += tex2; +# endif +# ifdef USEVERTEXTEXTUREBLEND + gl_FragColor = mix(gl_FragColor, tex2, tex2.a); +# endif +} +# endif + +#else // !MODE_GENERIC + +varying vec2 TexCoord; +#ifdef USEVERTEXTEXTUREBLEND +varying vec2 TexCoord2; +#endif +varying vec2 TexCoordLightmap; + +#ifdef MODE_LIGHTSOURCE +varying vec3 CubeVector; +#endif + +#ifdef MODE_LIGHTSOURCE +varying vec3 LightVector; +#endif +#ifdef MODE_LIGHTDIRECTION +varying vec3 LightVector; +#endif + +varying vec3 EyeVector; +#ifdef USEFOG +varying vec3 EyeVectorModelSpace; +#endif + +varying vec3 VectorS; // direction of S texcoord (sometimes crudely called tangent) +varying vec3 VectorT; // direction of T texcoord (sometimes crudely called binormal) +varying vec3 VectorR; // direction of R texcoord (surface normal) + +#ifdef MODE_WATER +varying vec4 ModelViewProjectionPosition; +#endif +#ifdef MODE_REFRACTION +varying vec4 ModelViewProjectionPosition; +#endif +#ifdef USEREFLECTION +varying vec4 ModelViewProjectionPosition; +#endif + + + + + +// vertex shader specific: +#ifdef VERTEX_SHADER + +uniform vec3 LightPosition; +uniform vec3 EyePosition; +uniform vec3 LightDir; + +// TODO: get rid of tangentt (texcoord2) and use a crossproduct to regenerate it from tangents (texcoord1) and normal (texcoord3), this would require sending a 4 component texcoord1 with W as 1 or -1 according to which side the texcoord2 should be on + +void main(void) +{ + gl_FrontColor = gl_Color; + // copy the surface texcoord + TexCoord = vec2(gl_TextureMatrix[0] * gl_MultiTexCoord0); +#ifdef USEVERTEXTEXTUREBLEND + TexCoord2 = vec2(gl_TextureMatrix[1] * gl_MultiTexCoord0); +#endif +#ifndef MODE_LIGHTSOURCE +# ifndef MODE_LIGHTDIRECTION + TexCoordLightmap = vec2(gl_MultiTexCoord4); +# endif +#endif + +#ifdef MODE_LIGHTSOURCE + // transform vertex position into light attenuation/cubemap space + // (-1 to +1 across the light box) + CubeVector = vec3(gl_TextureMatrix[3] * gl_Vertex); + + // transform unnormalized light direction into tangent space + // (we use unnormalized to ensure that it interpolates correctly and then + // normalize it per pixel) + vec3 lightminusvertex = LightPosition - gl_Vertex.xyz; + LightVector.x = dot(lightminusvertex, gl_MultiTexCoord1.xyz); + LightVector.y = dot(lightminusvertex, gl_MultiTexCoord2.xyz); + LightVector.z = dot(lightminusvertex, gl_MultiTexCoord3.xyz); +#endif + +#ifdef MODE_LIGHTDIRECTION + LightVector.x = dot(LightDir, gl_MultiTexCoord1.xyz); + LightVector.y = dot(LightDir, gl_MultiTexCoord2.xyz); + LightVector.z = dot(LightDir, gl_MultiTexCoord3.xyz); +#endif + + // transform unnormalized eye direction into tangent space +#ifndef USEFOG + vec3 EyeVectorModelSpace; +#endif + EyeVectorModelSpace = EyePosition - gl_Vertex.xyz; + EyeVector.x = dot(EyeVectorModelSpace, gl_MultiTexCoord1.xyz); + EyeVector.y = dot(EyeVectorModelSpace, gl_MultiTexCoord2.xyz); + EyeVector.z = dot(EyeVectorModelSpace, gl_MultiTexCoord3.xyz); + +#ifdef MODE_LIGHTDIRECTIONMAP_MODELSPACE + VectorS = gl_MultiTexCoord1.xyz; + VectorT = gl_MultiTexCoord2.xyz; + VectorR = gl_MultiTexCoord3.xyz; +#endif + +//#if defined(MODE_WATER) || defined(MODE_REFRACTION) || defined(USEREFLECTION) +// ModelViewProjectionPosition = gl_Vertex * gl_ModelViewProjectionMatrix; +// //ModelViewProjectionPosition_svector = (gl_Vertex + vec4(gl_MultiTexCoord1.xyz, 0)) * gl_ModelViewProjectionMatrix - ModelViewProjectionPosition; +// //ModelViewProjectionPosition_tvector = (gl_Vertex + vec4(gl_MultiTexCoord2.xyz, 0)) * gl_ModelViewProjectionMatrix - ModelViewProjectionPosition; +//#endif + +// transform vertex to camera space, using ftransform to match non-VS + // rendering + gl_Position = ftransform(); + +#ifdef MODE_WATER + ModelViewProjectionPosition = gl_Position; +#endif +#ifdef MODE_REFRACTION + ModelViewProjectionPosition = gl_Position; +#endif +#ifdef USEREFLECTION + ModelViewProjectionPosition = gl_Position; +#endif +} + +#endif // VERTEX_SHADER + + + + +// fragment shader specific: +#ifdef FRAGMENT_SHADER + +// 13 textures, we can only use up to 16 on DX9-class hardware +uniform sampler2D Texture_Normal; +uniform sampler2D Texture_Color; +uniform sampler2D Texture_Gloss; +uniform sampler2D Texture_Glow; +uniform sampler2D Texture_SecondaryNormal; +uniform sampler2D Texture_SecondaryColor; +uniform sampler2D Texture_SecondaryGloss; +uniform sampler2D Texture_SecondaryGlow; +uniform sampler2D Texture_Pants; +uniform sampler2D Texture_Shirt; +uniform sampler2D Texture_FogMask; +uniform sampler2D Texture_Lightmap; +uniform sampler2D Texture_Deluxemap; +uniform sampler2D Texture_Refraction; +uniform sampler2D Texture_Reflection; +uniform sampler2D Texture_Attenuation; +uniform samplerCube Texture_Cube; + +#define showshadowmap 0 + +#ifdef USESHADOWMAPRECT +# ifdef USESHADOWSAMPLER +uniform sampler2DRectShadow Texture_ShadowMapRect; +# else +uniform sampler2DRect Texture_ShadowMapRect; +# endif +#endif + +#ifdef USESHADOWMAP2D +# ifdef USESHADOWSAMPLER +uniform sampler2DShadow Texture_ShadowMap2D; +# else +uniform sampler2D Texture_ShadowMap2D; +# endif +#endif + +#ifdef USESHADOWMAPVSDCT +uniform samplerCube Texture_CubeProjection; +#endif + +#ifdef USESHADOWMAPCUBE +# ifdef USESHADOWSAMPLER +uniform samplerCubeShadow Texture_ShadowMapCube; +# else +uniform samplerCube Texture_ShadowMapCube; +# endif +#endif + +uniform myhalf3 LightColor; +uniform myhalf3 AmbientColor; +uniform myhalf3 DiffuseColor; +uniform myhalf3 SpecularColor; +uniform myhalf3 Color_Pants; +uniform myhalf3 Color_Shirt; +uniform myhalf3 FogColor; + +uniform myhalf4 TintColor; + + +//#ifdef MODE_WATER +uniform vec4 DistortScaleRefractReflect; +uniform vec4 ScreenScaleRefractReflect; +uniform vec4 ScreenCenterRefractReflect; +uniform myhalf4 RefractColor; +uniform myhalf4 ReflectColor; +uniform myhalf ReflectFactor; +uniform myhalf ReflectOffset; +//#else +//# ifdef MODE_REFRACTION +//uniform vec4 DistortScaleRefractReflect; +//uniform vec4 ScreenScaleRefractReflect; +//uniform vec4 ScreenCenterRefractReflect; +//uniform myhalf4 RefractColor; +//# ifdef USEREFLECTION +//uniform myhalf4 ReflectColor; +//# endif +//# else +//# ifdef USEREFLECTION +//uniform vec4 DistortScaleRefractReflect; +//uniform vec4 ScreenScaleRefractReflect; +//uniform vec4 ScreenCenterRefractReflect; +//uniform myhalf4 ReflectColor; +//# endif +//# endif +//#endif + +uniform myhalf GlowScale; +uniform myhalf SceneBrightness; + +uniform float OffsetMapping_Scale; +uniform float OffsetMapping_Bias; +uniform float FogRangeRecip; + +uniform myhalf AmbientScale; +uniform myhalf DiffuseScale; +uniform myhalf SpecularScale; +uniform myhalf SpecularPower; + +#ifdef USEOFFSETMAPPING +vec2 OffsetMapping(vec2 TexCoord) +{ +#ifdef USEOFFSETMAPPING_RELIEFMAPPING + // 14 sample relief mapping: linear search and then binary search + // this basically steps forward a small amount repeatedly until it finds + // itself inside solid, then jitters forward and back using decreasing + // amounts to find the impact + //vec3 OffsetVector = vec3(EyeVector.xy * ((1.0 / EyeVector.z) * OffsetMapping_Scale) * vec2(-1, 1), -1); + //vec3 OffsetVector = vec3(normalize(EyeVector.xy) * OffsetMapping_Scale * vec2(-1, 1), -1); + vec3 OffsetVector = vec3(normalize(EyeVector).xy * OffsetMapping_Scale * vec2(-1, 1), -1); + vec3 RT = vec3(TexCoord, 1); + OffsetVector *= 0.1; + RT += OffsetVector * step(texture2D(Texture_Normal, RT.xy).a, RT.z); + RT += OffsetVector * step(texture2D(Texture_Normal, RT.xy).a, RT.z); + RT += OffsetVector * step(texture2D(Texture_Normal, RT.xy).a, RT.z); + RT += OffsetVector * step(texture2D(Texture_Normal, RT.xy).a, RT.z); + RT += OffsetVector * step(texture2D(Texture_Normal, RT.xy).a, RT.z); + RT += OffsetVector * step(texture2D(Texture_Normal, RT.xy).a, RT.z); + RT += OffsetVector * step(texture2D(Texture_Normal, RT.xy).a, RT.z); + RT += OffsetVector * step(texture2D(Texture_Normal, RT.xy).a, RT.z); + RT += OffsetVector * step(texture2D(Texture_Normal, RT.xy).a, RT.z); + RT += OffsetVector * (step(texture2D(Texture_Normal, RT.xy).a, RT.z) - 0.5); + RT += OffsetVector * (step(texture2D(Texture_Normal, RT.xy).a, RT.z) * 0.5 - 0.25); + RT += OffsetVector * (step(texture2D(Texture_Normal, RT.xy).a, RT.z) * 0.25 - 0.125); + RT += OffsetVector * (step(texture2D(Texture_Normal, RT.xy).a, RT.z) * 0.125 - 0.0625); + RT += OffsetVector * (step(texture2D(Texture_Normal, RT.xy).a, RT.z) * 0.0625 - 0.03125); + return RT.xy; +#else + // 3 sample offset mapping (only 3 samples because of ATI Radeon 9500-9800/X300 limits) + // this basically moves forward the full distance, and then backs up based + // on height of samples + //vec2 OffsetVector = vec2(EyeVector.xy * ((1.0 / EyeVector.z) * OffsetMapping_Scale) * vec2(-1, 1)); + //vec2 OffsetVector = vec2(normalize(EyeVector.xy) * OffsetMapping_Scale * vec2(-1, 1)); + vec2 OffsetVector = vec2(normalize(EyeVector).xy * OffsetMapping_Scale * vec2(-1, 1)); + TexCoord += OffsetVector; + OffsetVector *= 0.333; + TexCoord -= OffsetVector * texture2D(Texture_Normal, TexCoord).a; + TexCoord -= OffsetVector * texture2D(Texture_Normal, TexCoord).a; + TexCoord -= OffsetVector * texture2D(Texture_Normal, TexCoord).a; + return TexCoord; +#endif +} +#endif // USEOFFSETMAPPING + +#if defined(USESHADOWMAPRECT) || defined(USESHADOWMAP2D) || defined(USESHADOWMAPCUBE) +uniform vec2 ShadowMap_TextureScale; +uniform vec4 ShadowMap_Parameters; +#endif + +#if defined(USESHADOWMAPRECT) || defined(USESHADOWMAP2D) +vec3 GetShadowMapTC2D(vec3 dir) +{ + vec3 adir = abs(dir); +# ifndef USESHADOWMAPVSDCT + vec2 tc; + vec2 offset; + float ma; + if (adir.x > adir.y) + { + if (adir.x > adir.z) // X + { + ma = adir.x; + tc = dir.zy; + offset = vec2(mix(0.5, 1.5, dir.x < 0.0), 0.5); + } + else // Z + { + ma = adir.z; + tc = dir.xy; + offset = vec2(mix(0.5, 1.5, dir.z < 0.0), 2.5); + } + } + else + { + if (adir.y > adir.z) // Y + { + ma = adir.y; + tc = dir.xz; + offset = vec2(mix(0.5, 1.5, dir.y < 0.0), 1.5); + } + else // Z + { + ma = adir.z; + tc = dir.xy; + offset = vec2(mix(0.5, 1.5, dir.z < 0.0), 2.5); + } + } + + vec3 stc = vec3(tc * ShadowMap_Parameters.x, ShadowMap_Parameters.w) / ma; + stc.xy += offset * ShadowMap_Parameters.y; + stc.z += ShadowMap_Parameters.z; +# if showshadowmap + stc.xy *= ShadowMap_TextureScale; +# endif + return stc; +# else + vec4 proj = textureCube(Texture_CubeProjection, dir); + float ma = max(max(adir.x, adir.y), adir.z); + vec3 stc = vec3(mix(dir.xy, dir.zz, proj.xy) * ShadowMap_Parameters.x, ShadowMap_Parameters.w) / ma; + stc.xy += proj.zw * ShadowMap_Parameters.y; + stc.z += ShadowMap_Parameters.z; +# if showshadowmap + stc.xy *= ShadowMap_TextureScale; +# endif + return stc; +# endif +} +#endif // defined(USESHADOWMAPRECT) || defined(USESHADOWMAP2D) + +#ifdef USESHADOWMAPCUBE +vec4 GetShadowMapTCCube(vec3 dir) +{ + vec3 adir = abs(dir); + return vec4(dir, ShadowMap_Parameters.z + ShadowMap_Parameters.w / max(max(adir.x, adir.y), adir.z)); +} +#endif + +#if !showshadowmap +# ifdef USESHADOWMAPRECT +float ShadowMapCompare(vec3 dir) +{ + vec3 shadowmaptc = GetShadowMapTC2D(dir); + float f; +# ifdef USESHADOWSAMPLER + +# ifdef USESHADOWMAPPCF +# define texval(x, y) shadow2DRect(Texture_ShadowMapRect, shadowmaptc + vec3(x, y, 0.0)).r + 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))); +# else + f = shadow2DRect(Texture_ShadowMapRect, shadowmaptc).r; +# endif + +# else + +# ifdef USESHADOWMAPPCF +# if USESHADOWMAPPCF > 1 +# define texval(x, y) texture2DRect(Texture_ShadowMapRect, center + vec2(x, y)).r + vec2 center = shadowmaptc.xy - 0.5, offset = fract(center); + vec4 row1 = step(shadowmaptc.z, vec4(texval(-1.0, -1.0), texval( 0.0, -1.0), texval( 1.0, -1.0), texval( 2.0, -1.0))); + vec4 row2 = step(shadowmaptc.z, vec4(texval(-1.0, 0.0), texval( 0.0, 0.0), texval( 1.0, 0.0), texval( 2.0, 0.0))); + vec4 row3 = step(shadowmaptc.z, vec4(texval(-1.0, 1.0), texval( 0.0, 1.0), texval( 1.0, 1.0), texval( 2.0, 1.0))); + vec4 row4 = step(shadowmaptc.z, vec4(texval(-1.0, 2.0), texval( 0.0, 2.0), texval( 1.0, 2.0), texval( 2.0, 2.0))); + vec4 cols = row2 + row3 + mix(row1, row4, offset.y); + f = dot(mix(cols.xyz, cols.yzw, offset.x), vec3(1.0/9.0)); +# else +# define texval(x, y) texture2DRect(Texture_ShadowMapRect, shadowmaptc.xy + vec2(x, y)).r + vec2 offset = fract(shadowmaptc.xy); + vec3 row1 = step(shadowmaptc.z, vec3(texval(-1.0, -1.0), texval( 0.0, -1.0), texval( 1.0, -1.0))); + vec3 row2 = step(shadowmaptc.z, vec3(texval(-1.0, 0.0), texval( 0.0, 0.0), texval( 1.0, 0.0))); + vec3 row3 = step(shadowmaptc.z, vec3(texval(-1.0, 1.0), texval( 0.0, 1.0), texval( 1.0, 1.0))); + vec3 cols = row2 + mix(row1, row3, offset.y); + f = dot(mix(cols.xy, cols.yz, offset.x), vec2(0.25)); +# endif +# else + f = step(shadowmaptc.z, texture2DRect(Texture_ShadowMapRect, shadowmaptc.xy).r); +# endif + +# endif + return f; +} +# endif + +# ifdef USESHADOWMAP2D +float ShadowMapCompare(vec3 dir) +{ + vec3 shadowmaptc = GetShadowMapTC2D(dir); + float f; + +# ifdef USESHADOWSAMPLER +# ifdef USESHADOWMAPPCF +# define texval(x, y) shadow2D(Texture_ShadowMap2D, vec3(center + vec2(x, y)*ShadowMap_TextureScale, shadowmaptc.z)).r + vec2 center = shadowmaptc.xy*ShadowMap_TextureScale; + 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))); +# else + f = shadow2D(Texture_ShadowMap2D, vec3(shadowmaptc.xy*ShadowMap_TextureScale, shadowmaptc.z)).r; +# endif +# else +# ifdef USESHADOWMAPPCF +# if defined(GL_ARB_texture_gather) || defined(GL_AMD_texture_texture4) +# ifdef GL_ARB_texture_gather +# define texval(x, y) textureGatherOffset(Texture_ShadowMap2D, center, ivec(x, y)) +# else +# define texval(x, y) texture4(Texture_ShadowMap2D, center + vec2(x,y)*ShadowMap_TextureScale) +# endif + vec2 center = shadowmaptc.xy - 0.5, offset = fract(center); + center *= ShadowMap_TextureScale; + vec4 group1 = step(shadowmaptc.z, texval(-1.0, -1.0)); + vec4 group2 = step(shadowmaptc.z, texval( 1.0, -1.0)); + vec4 group3 = step(shadowmaptc.z, texval(-1.0, 1.0)); + vec4 group4 = step(shadowmaptc.z, texval( 1.0, 1.0)); + vec4 cols = vec4(group1.rg, group2.rg) + vec4(group3.ab, group4.ab) + + mix(vec4(group1.ab, group2.ab), vec4(group3.rg, group4.rg), offset.y); + f = dot(mix(cols.xyz, cols.yzw, offset.x), vec3(1.0/9.0)); +# else +# ifdef GL_EXT_gpu_shader4 +# define texval(x, y) texture2DOffset(Texture_ShadowMap2D, center, ivec2(x, y)).r +# else +# define texval(x, y) texture2D(Texture_ShadowMap2D, center + vec2(x, y)*ShadowMap_TextureScale).r +# endif +# if USESHADOWMAPPCF > 1 + vec2 center = shadowmaptc.xy - 0.5, offset = fract(center); + center *= ShadowMap_TextureScale; + vec4 row1 = step(shadowmaptc.z, vec4(texval(-1.0, -1.0), texval( 0.0, -1.0), texval( 1.0, -1.0), texval( 2.0, -1.0))); + vec4 row2 = step(shadowmaptc.z, vec4(texval(-1.0, 0.0), texval( 0.0, 0.0), texval( 1.0, 0.0), texval( 2.0, 0.0))); + vec4 row3 = step(shadowmaptc.z, vec4(texval(-1.0, 1.0), texval( 0.0, 1.0), texval( 1.0, 1.0), texval( 2.0, 1.0))); + vec4 row4 = step(shadowmaptc.z, vec4(texval(-1.0, 2.0), texval( 0.0, 2.0), texval( 1.0, 2.0), texval( 2.0, 2.0))); + vec4 cols = row2 + row3 + mix(row1, row4, offset.y); + f = dot(mix(cols.xyz, cols.yzw, offset.x), vec3(1.0/9.0)); +# else + vec2 center = shadowmaptc.xy*ShadowMap_TextureScale, offset = fract(shadowmaptc.xy); + vec3 row1 = step(shadowmaptc.z, vec3(texval(-1.0, -1.0), texval( 0.0, -1.0), texval( 1.0, -1.0))); + vec3 row2 = step(shadowmaptc.z, vec3(texval(-1.0, 0.0), texval( 0.0, 0.0), texval( 1.0, 0.0))); + vec3 row3 = step(shadowmaptc.z, vec3(texval(-1.0, 1.0), texval( 0.0, 1.0), texval( 1.0, 1.0))); + vec3 cols = row2 + mix(row1, row3, offset.y); + f = dot(mix(cols.xy, cols.yz, offset.x), vec2(0.25)); +# endif +# endif +# else + f = step(shadowmaptc.z, texture2D(Texture_ShadowMap2D, shadowmaptc.xy*ShadowMap_TextureScale).r); +# endif +# endif + return f; +} +# endif + +# ifdef USESHADOWMAPCUBE +float ShadowMapCompare(vec3 dir) +{ + // apply depth texture cubemap as light filter + vec4 shadowmaptc = GetShadowMapTCCube(dir); + float f; +# ifdef USESHADOWSAMPLER + f = shadowCube(Texture_ShadowMapCube, shadowmaptc).r; +# else + f = step(shadowmaptc.w, textureCube(Texture_ShadowMapCube, shadowmaptc.xyz).r); +# endif + return f; +} +# endif +#endif + +#ifdef MODE_WATER + +// water pass +void main(void) +{ +#ifdef USEOFFSETMAPPING + // apply offsetmapping + vec2 TexCoordOffset = OffsetMapping(TexCoord); +#define TexCoord TexCoordOffset +#endif + + vec4 ScreenScaleRefractReflectIW = ScreenScaleRefractReflect * (1.0 / ModelViewProjectionPosition.w); + //vec4 ScreenTexCoord = (ModelViewProjectionPosition.xyxy + normalize(myhalf3(texture2D(Texture_Normal, TexCoord)) - myhalf3(0.5)).xyxy * DistortScaleRefractReflect * 100) * ScreenScaleRefractReflectIW + ScreenCenterRefractReflect; + vec4 SafeScreenTexCoord = ModelViewProjectionPosition.xyxy * ScreenScaleRefractReflectIW + ScreenCenterRefractReflect; + vec4 ScreenTexCoord = SafeScreenTexCoord + vec2(normalize(myhalf3(texture2D(Texture_Normal, TexCoord)) - myhalf3(0.5))).xyxy * DistortScaleRefractReflect; + // FIXME temporary hack to detect the case that the reflection + // gets blackened at edges due to leaving the area that contains actual + // content. + // Remove this 'ack once we have a better way to stop this thing from + // 'appening. + float f = min(1.0, length(texture2D(Texture_Refraction, ScreenTexCoord.xy + vec2(0.01, 0.01)).rgb) / 0.05); + f *= min(1.0, length(texture2D(Texture_Refraction, ScreenTexCoord.xy + vec2(0.01, -0.01)).rgb) / 0.05); + f *= min(1.0, length(texture2D(Texture_Refraction, ScreenTexCoord.xy + vec2(-0.01, 0.01)).rgb) / 0.05); + f *= min(1.0, length(texture2D(Texture_Refraction, ScreenTexCoord.xy + vec2(-0.01, -0.01)).rgb) / 0.05); + ScreenTexCoord.xy = mix(SafeScreenTexCoord.xy, ScreenTexCoord.xy, f); + f = min(1.0, length(texture2D(Texture_Reflection, ScreenTexCoord.zw + vec2(0.01, 0.01)).rgb) / 0.05); + f *= min(1.0, length(texture2D(Texture_Reflection, ScreenTexCoord.zw + vec2(0.01, -0.01)).rgb) / 0.05); + f *= min(1.0, length(texture2D(Texture_Reflection, ScreenTexCoord.zw + vec2(-0.01, 0.01)).rgb) / 0.05); + f *= min(1.0, length(texture2D(Texture_Reflection, ScreenTexCoord.zw + vec2(-0.01, -0.01)).rgb) / 0.05); + ScreenTexCoord.zw = mix(SafeScreenTexCoord.zw, ScreenTexCoord.zw, f); + float Fresnel = pow(min(1.0, 1.0 - float(normalize(EyeVector).z)), 2.0) * ReflectFactor + ReflectOffset; + gl_FragColor = mix(texture2D(Texture_Refraction, ScreenTexCoord.xy) * RefractColor, texture2D(Texture_Reflection, ScreenTexCoord.zw) * ReflectColor, Fresnel); +} + +#else // !MODE_WATER +#ifdef MODE_REFRACTION + +// refraction pass +void main(void) +{ +#ifdef USEOFFSETMAPPING + // apply offsetmapping + vec2 TexCoordOffset = OffsetMapping(TexCoord); +#define TexCoord TexCoordOffset +#endif + + vec2 ScreenScaleRefractReflectIW = ScreenScaleRefractReflect.xy * (1.0 / ModelViewProjectionPosition.w); + //vec2 ScreenTexCoord = (ModelViewProjectionPosition.xy + normalize(myhalf3(texture2D(Texture_Normal, TexCoord)) - myhalf3(0.5)).xy * DistortScaleRefractReflect.xy * 100) * ScreenScaleRefractReflectIW + ScreenCenterRefractReflect.xy; + vec2 SafeScreenTexCoord = ModelViewProjectionPosition.xy * ScreenScaleRefractReflectIW + ScreenCenterRefractReflect.xy; + vec2 ScreenTexCoord = SafeScreenTexCoord + vec2(normalize(myhalf3(texture2D(Texture_Normal, TexCoord)) - myhalf3(0.5))).xy * DistortScaleRefractReflect.xy; + // FIXME temporary hack to detect the case that the reflection + // gets blackened at edges due to leaving the area that contains actual + // content. + // Remove this 'ack once we have a better way to stop this thing from + // 'appening. + float f = min(1.0, length(texture2D(Texture_Refraction, ScreenTexCoord + vec2(0.01, 0.01)).rgb) / 0.05); + f *= min(1.0, length(texture2D(Texture_Refraction, ScreenTexCoord + vec2(0.01, -0.01)).rgb) / 0.05); + f *= min(1.0, length(texture2D(Texture_Refraction, ScreenTexCoord + vec2(-0.01, 0.01)).rgb) / 0.05); + f *= min(1.0, length(texture2D(Texture_Refraction, ScreenTexCoord + vec2(-0.01, -0.01)).rgb) / 0.05); + ScreenTexCoord = mix(SafeScreenTexCoord, ScreenTexCoord, f); + gl_FragColor = texture2D(Texture_Refraction, ScreenTexCoord) * RefractColor; +} + +#else // !MODE_REFRACTION +void main(void) +{ +#ifdef USEOFFSETMAPPING + // apply offsetmapping + vec2 TexCoordOffset = OffsetMapping(TexCoord); +#define TexCoord TexCoordOffset +#endif + + // combine the diffuse textures (base, pants, shirt) + myhalf4 color = myhalf4(texture2D(Texture_Color, TexCoord)); +#ifdef USECOLORMAPPING + color.rgb += myhalf3(texture2D(Texture_Pants, TexCoord)) * Color_Pants + myhalf3(texture2D(Texture_Shirt, TexCoord)) * Color_Shirt; +#endif +#ifdef USEVERTEXTEXTUREBLEND + myhalf terrainblend = clamp(myhalf(gl_Color.a) * color.a * 2.0 - 0.5, myhalf(0.0), myhalf(1.0)); + //myhalf terrainblend = min(myhalf(gl_Color.a) * color.a * 2.0, myhalf(1.0)); + //myhalf terrainblend = myhalf(gl_Color.a) * color.a > 0.5; + color.rgb = mix(myhalf3(texture2D(Texture_SecondaryColor, TexCoord2)), color.rgb, terrainblend); + color.a = 1.0; + //color = mix(myhalf4(1, 0, 0, 1), color, terrainblend); +#endif + +#ifdef USEDIFFUSE + // get the surface normal and the gloss color +# ifdef USEVERTEXTEXTUREBLEND + myhalf3 surfacenormal = normalize(mix(myhalf3(texture2D(Texture_SecondaryNormal, TexCoord2)), myhalf3(texture2D(Texture_Normal, TexCoord)), terrainblend) - myhalf3(0.5, 0.5, 0.5)); +# ifdef USESPECULAR + myhalf3 glosscolor = mix(myhalf3(texture2D(Texture_SecondaryGloss, TexCoord2)), myhalf3(texture2D(Texture_Gloss, TexCoord)), terrainblend); +# endif +# else + myhalf3 surfacenormal = normalize(myhalf3(texture2D(Texture_Normal, TexCoord)) - myhalf3(0.5, 0.5, 0.5)); +# ifdef USESPECULAR + myhalf3 glosscolor = myhalf3(texture2D(Texture_Gloss, TexCoord)); +# endif +# endif +#endif + + + +#ifdef MODE_LIGHTSOURCE + // light source + + // calculate surface normal, light normal, and specular normal + // compute color intensity for the two textures (colormap and glossmap) + // scale by light color and attenuation as efficiently as possible + // (do as much scalar math as possible rather than vector math) +# ifdef USEDIFFUSE + // get the light normal + myhalf3 diffusenormal = myhalf3(normalize(LightVector)); +# endif +# ifdef USESPECULAR +# ifndef USEEXACTSPECULARMATH + myhalf3 specularnormal = normalize(diffusenormal + myhalf3(normalize(EyeVector))); + +# endif + // calculate directional shading +# ifdef USEEXACTSPECULARMATH + color.rgb = myhalf(texture2D(Texture_Attenuation, vec2(length(CubeVector), 0.0))) * (color.rgb * (AmbientScale + DiffuseScale * myhalf(max(float(dot(surfacenormal, diffusenormal)), 0.0))) + (SpecularScale * pow(myhalf(max(float(dot(reflect(diffusenormal, surfacenormal), normalize(EyeVector)))*-1.0, 0.0)), SpecularPower)) * glosscolor); +# else + color.rgb = myhalf(texture2D(Texture_Attenuation, vec2(length(CubeVector), 0.0))) * (color.rgb * (AmbientScale + DiffuseScale * myhalf(max(float(dot(surfacenormal, diffusenormal)), 0.0))) + (SpecularScale * pow(myhalf(max(float(dot(surfacenormal, specularnormal)), 0.0)), SpecularPower)) * glosscolor); +# endif +# else +# ifdef USEDIFFUSE + // calculate directional shading + color.rgb = color.rgb * (myhalf(texture2D(Texture_Attenuation, vec2(length(CubeVector), 0.0))) * (AmbientScale + DiffuseScale * myhalf(max(float(dot(surfacenormal, diffusenormal)), 0.0)))); +# else + // calculate directionless shading + color.rgb = color.rgb * myhalf(texture2D(Texture_Attenuation, vec2(length(CubeVector), 0.0))); +# endif +# endif + +#if defined(USESHADOWMAPRECT) || defined(USESHADOWMAPCUBE) || defined(USESHADOWMAP2D) +#if !showshadowmap + color.rgb *= ShadowMapCompare(CubeVector); +#endif +#endif + +# ifdef USECUBEFILTER + // apply light cubemap filter + //color.rgb *= normalize(CubeVector) * 0.5 + 0.5;//vec3(textureCube(Texture_Cube, CubeVector)); + color.rgb *= myhalf3(textureCube(Texture_Cube, CubeVector)); +# endif +#endif // MODE_LIGHTSOURCE + + + + +#ifdef MODE_LIGHTDIRECTION + // directional model lighting +# ifdef USEDIFFUSE + // get the light normal + myhalf3 diffusenormal = myhalf3(normalize(LightVector)); +# endif +# ifdef USESPECULAR + // calculate directional shading + color.rgb *= AmbientColor + DiffuseColor * myhalf(max(float(dot(surfacenormal, diffusenormal)), 0.0)); +# ifdef USEEXACTSPECULARMATH + color.rgb += myhalf3(texture2D(Texture_Gloss, TexCoord)) * SpecularColor * pow(myhalf(max(float(dot(reflect(diffusenormal, surfacenormal), normalize(EyeVector)))*-1.0, 0.0)), SpecularPower); +# else + myhalf3 specularnormal = normalize(diffusenormal + myhalf3(normalize(EyeVector))); + color.rgb += myhalf3(texture2D(Texture_Gloss, TexCoord)) * SpecularColor * pow(myhalf(max(float(dot(surfacenormal, specularnormal)), 0.0)), SpecularPower); +# endif +# else +# ifdef USEDIFFUSE + + // calculate directional shading + color.rgb *= AmbientColor + DiffuseColor * myhalf(max(float(dot(surfacenormal, diffusenormal)), 0.0)); +# else + color.rgb *= AmbientColor; +# endif +# endif +#endif // MODE_LIGHTDIRECTION + + + + +#ifdef MODE_LIGHTDIRECTIONMAP_MODELSPACE + // deluxemap lightmapping using light vectors in modelspace (evil q3map2) + + // get the light normal + myhalf3 diffusenormal_modelspace = myhalf3(texture2D(Texture_Deluxemap, TexCoordLightmap)) * 2.0 + myhalf3(-1.0, -1.0, -1.0); + myhalf3 diffusenormal; + diffusenormal.x = dot(diffusenormal_modelspace, myhalf3(VectorS)); + diffusenormal.y = dot(diffusenormal_modelspace, myhalf3(VectorT)); + diffusenormal.z = dot(diffusenormal_modelspace, myhalf3(VectorR)); + // calculate directional shading (and undoing the existing angle attenuation on the lightmap by the division) + // note that q3map2 is too stupid to calculate proper surface normals when q3map_nonplanar + // is used (the lightmap and deluxemap coords correspond to virtually random coordinates + // on that luxel, and NOT to its center, because recursive triangle subdivision is used + // to map the luxels to coordinates on the draw surfaces), which also causes + // deluxemaps to be wrong because light contributions from the wrong side of the surface + // are added up. To prevent divisions by zero or strong exaggerations, a max() + // nudge is done here at expense of some additional fps. This is ONLY needed for + // deluxemaps, tangentspace deluxemap avoid this problem by design. + myhalf3 tempcolor = color.rgb * (DiffuseScale * myhalf(max(float(dot(surfacenormal, diffusenormal) / max(0.25, diffusenormal.z)), 0.0))); + // 0.25 supports up to 75.5 degrees normal/deluxe angle +# ifdef USESPECULAR +# ifdef USEEXACTSPECULARMATH + tempcolor += myhalf3(texture2D(Texture_Gloss, TexCoord)) * SpecularScale * pow(myhalf(max(float(dot(reflect(normalize(diffusenormal), surfacenormal), normalize(EyeVector)))*-1.0, 0.0)), SpecularPower); +# else + myhalf3 specularnormal = myhalf3(normalize(diffusenormal + myhalf3(normalize(EyeVector)))); + tempcolor += myhalf3(texture2D(Texture_Gloss, TexCoord)) * SpecularScale * pow(myhalf(max(float(dot(surfacenormal, specularnormal)), 0.0)), SpecularPower); +# endif +# endif + + // apply lightmap color + color.rgb = color.rgb * AmbientScale + tempcolor * myhalf3(texture2D(Texture_Lightmap, TexCoordLightmap)); +#endif // MODE_LIGHTDIRECTIONMAP_MODELSPACE + + + + +#ifdef MODE_LIGHTDIRECTIONMAP_TANGENTSPACE + // deluxemap lightmapping using light vectors in tangentspace (hmap2 -light) + + // get the light normal + myhalf3 diffusenormal = myhalf3(texture2D(Texture_Deluxemap, TexCoordLightmap)) * 2.0 + myhalf3(-1.0, -1.0, -1.0); + // calculate directional shading (and undoing the existing angle attenuation on the lightmap by the division) + myhalf3 tempcolor = color.rgb * (DiffuseScale * myhalf(max(float(dot(surfacenormal, diffusenormal) / diffusenormal.z), 0.0))); +# ifdef USESPECULAR +# ifdef USEEXACTSPECULARMATH + tempcolor += myhalf3(texture2D(Texture_Gloss, TexCoord)) * SpecularScale * pow(myhalf(max(float(dot(reflect(diffusenormal, surfacenormal), normalize(EyeVector)))*-1.0, 0.0)), SpecularPower); +# else + myhalf3 specularnormal = myhalf3(normalize(diffusenormal + myhalf3(normalize(EyeVector)))); + tempcolor += myhalf3(texture2D(Texture_Gloss, TexCoord)) * SpecularScale * pow(myhalf(max(float(dot(surfacenormal, specularnormal)), 0.0)), SpecularPower); +# endif +# endif + + // apply lightmap color + color.rgb = color.rgb * AmbientScale + tempcolor * myhalf3(texture2D(Texture_Lightmap, TexCoordLightmap)); +#endif // MODE_LIGHTDIRECTIONMAP_TANGENTSPACE + + + + +#ifdef MODE_LIGHTMAP + // apply lightmap color + color.rgb = color.rgb * myhalf3(texture2D(Texture_Lightmap, TexCoordLightmap)) * DiffuseScale + color.rgb * AmbientScale; +#endif // MODE_LIGHTMAP + + + + +#ifdef MODE_VERTEXCOLOR + // apply lightmap color + color.rgb = color.rgb * myhalf3(gl_Color.rgb) * DiffuseScale + color.rgb * AmbientScale; +#endif // MODE_VERTEXCOLOR + + + + +#ifdef MODE_FLATCOLOR +#endif // MODE_FLATCOLOR + + + + + + + + color *= TintColor; + +#ifdef USEGLOW +#ifdef USEVERTEXTEXTUREBLEND + color.rgb += mix(myhalf3(texture2D(Texture_SecondaryGlow, TexCoord2)), myhalf3(texture2D(Texture_Glow, TexCoord)), terrainblend); +#else + color.rgb += myhalf3(texture2D(Texture_Glow, TexCoord)) * GlowScale; +#endif +#endif + + color.rgb *= SceneBrightness; + + // apply fog after Contrastboost/SceneBrightness because its color is already modified appropriately +#ifdef USEFOG + color.rgb = mix(FogColor, color.rgb, myhalf(texture2D(Texture_FogMask, myhalf2(length(EyeVectorModelSpace)*FogRangeRecip, 0.0)))); +#endif + + // reflection must come last because it already contains exactly the correct fog (the reflection render preserves camera distance from the plane, it only flips the side) and ContrastBoost/SceneBrightness +#ifdef USEREFLECTION + vec4 ScreenScaleRefractReflectIW = ScreenScaleRefractReflect * (1.0 / ModelViewProjectionPosition.w); + //vec4 ScreenTexCoord = (ModelViewProjectionPosition.xyxy + normalize(myhalf3(texture2D(Texture_Normal, TexCoord)) - myhalf3(0.5)).xyxy * DistortScaleRefractReflect * 100) * ScreenScaleRefractReflectIW + ScreenCenterRefractReflect; + vec2 SafeScreenTexCoord = ModelViewProjectionPosition.xy * ScreenScaleRefractReflectIW.zw + ScreenCenterRefractReflect.zw; + vec2 ScreenTexCoord = SafeScreenTexCoord + vec3(normalize(myhalf3(texture2D(Texture_Normal, TexCoord)) - myhalf3(0.5))).xy * DistortScaleRefractReflect.zw; + // FIXME temporary hack to detect the case that the reflection + // gets blackened at edges due to leaving the area that contains actual + // content. + // Remove this 'ack once we have a better way to stop this thing from + // 'appening. + float f = min(1.0, length(texture2D(Texture_Reflection, ScreenTexCoord + vec2(0.01, 0.01)).rgb) / 0.05); + f *= min(1.0, length(texture2D(Texture_Reflection, ScreenTexCoord + vec2(0.01, -0.01)).rgb) / 0.05); + f *= min(1.0, length(texture2D(Texture_Reflection, ScreenTexCoord + vec2(-0.01, 0.01)).rgb) / 0.05); + f *= min(1.0, length(texture2D(Texture_Reflection, ScreenTexCoord + vec2(-0.01, -0.01)).rgb) / 0.05); + ScreenTexCoord = mix(SafeScreenTexCoord, ScreenTexCoord, f); + color.rgb = mix(color.rgb, myhalf3(texture2D(Texture_Reflection, ScreenTexCoord)) * ReflectColor.rgb, ReflectColor.a); +#endif + + gl_FragColor = vec4(color); + +#if showshadowmap +# ifdef USESHADOWMAPRECT +# ifdef USESHADOWSAMPLER + gl_FragColor = shadow2DRect(Texture_ShadowMapRect, GetShadowMapTC2D(CubeVector).xyz); +# else + gl_FragColor = texture2DRect(Texture_ShadowMapRect, GetShadowMapTC2D(CubeVector).xy); +# endif +# endif +# ifdef USESHADOWMAP2D +# ifdef USESHADOWSAMPLER + gl_FragColor = shadow2D(Texture_ShadowMap2D, GetShadowMapTC2D(CubeVector).xyz); +# else + gl_FragColor = texture2D(Texture_ShadowMap2D, GetShadowMapTC2D(CubeVector).xy); +# endif +# endif + +# ifdef USESHADOWMAPCUBE +# ifdef USESHADOWSAMPLER + gl_FragColor = shadowCube(Texture_ShadowMapCube, GetShadowMapTCCube(CubeVector)); +# else + gl_FragColor = textureCube(Texture_ShadowMapCube, GetShadowMapTCCube(CubeVector).xyz); +# endif +# endif +#endif +} +#endif // !MODE_REFRACTION +#endif // !MODE_WATER + +#endif // FRAGMENT_SHADER + +#endif // !MODE_GENERIC +#endif // !MODE_POSTPROCESS +#endif // !MODE_SHOWDEPTH +#endif // !MODE_DEPTH_OR_SHADOW + |