forked from mirror/openmw-tes3mp
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
155 lines
4.0 KiB
GLSL
155 lines
4.0 KiB
GLSL
#version 120
|
|
|
|
#if @diffuseMap
|
|
uniform sampler2D diffuseMap;
|
|
varying vec2 diffuseMapUV;
|
|
#endif
|
|
|
|
#if @darkMap
|
|
uniform sampler2D darkMap;
|
|
varying vec2 darkMapUV;
|
|
#endif
|
|
|
|
#if @detailMap
|
|
uniform sampler2D detailMap;
|
|
varying vec2 detailMapUV;
|
|
#endif
|
|
|
|
#if @decalMap
|
|
uniform sampler2D decalMap;
|
|
varying vec2 decalMapUV;
|
|
#endif
|
|
|
|
#if @emissiveMap
|
|
uniform sampler2D emissiveMap;
|
|
varying vec2 emissiveMapUV;
|
|
#endif
|
|
|
|
#if @normalMap
|
|
uniform sampler2D normalMap;
|
|
varying vec2 normalMapUV;
|
|
varying vec4 passTangent;
|
|
#endif
|
|
|
|
#if @envMap
|
|
uniform sampler2D envMap;
|
|
varying vec2 envMapUV;
|
|
uniform vec4 envMapColor;
|
|
#endif
|
|
|
|
#if @specularMap
|
|
uniform sampler2D specularMap;
|
|
varying vec2 specularMapUV;
|
|
#endif
|
|
|
|
varying float depth;
|
|
|
|
#define PER_PIXEL_LIGHTING (@normalMap || @forcePPL)
|
|
|
|
#if !PER_PIXEL_LIGHTING
|
|
varying vec4 lighting;
|
|
#else
|
|
varying vec4 passColor;
|
|
#endif
|
|
varying vec3 passViewPos;
|
|
varying vec3 passNormal;
|
|
|
|
#include "lighting.glsl"
|
|
#include "parallax.glsl"
|
|
|
|
void main()
|
|
{
|
|
#if @diffuseMap
|
|
vec2 adjustedDiffuseUV = diffuseMapUV;
|
|
#endif
|
|
|
|
#if @normalMap
|
|
vec4 normalTex = texture2D(normalMap, normalMapUV);
|
|
|
|
vec3 normalizedNormal = normalize(passNormal);
|
|
vec3 normalizedTangent = normalize(passTangent.xyz);
|
|
vec3 binormal = cross(normalizedTangent, normalizedNormal);
|
|
mat3 tbnTranspose = mat3(normalizedTangent, binormal, normalizedNormal);
|
|
|
|
vec3 viewNormal = gl_NormalMatrix * normalize(tbnTranspose * (normalTex.xyz * 2.0 - 1.0));
|
|
#else
|
|
vec3 viewNormal = gl_NormalMatrix * normalize(passNormal);
|
|
#endif
|
|
|
|
#if @parallax
|
|
vec3 cameraPos = (gl_ModelViewMatrixInverse * vec4(0,0,0,1)).xyz;
|
|
vec3 objectPos = (gl_ModelViewMatrixInverse * vec4(passViewPos, 1)).xyz;
|
|
vec3 eyeDir = normalize(cameraPos - objectPos);
|
|
vec2 offset = getParallaxOffset(eyeDir, tbnTranspose, normalTex.a, (passTangent.w > 0) ? -1.f : 1.f);
|
|
adjustedDiffuseUV += offset; // only offset diffuse for now, other textures are more likely to be using a completely different UV set
|
|
|
|
// TODO: check not working as the same UV buffer is being bound to different targets
|
|
// if diffuseMapUV == normalMapUV
|
|
#if 1
|
|
// fetch a new normal using updated coordinates
|
|
normalTex = texture2D(normalMap, adjustedDiffuseUV);
|
|
viewNormal = gl_NormalMatrix * normalize(tbnTranspose * (normalTex.xyz * 2.0 - 1.0));
|
|
#endif
|
|
|
|
#endif
|
|
|
|
#if @diffuseMap
|
|
gl_FragData[0] = texture2D(diffuseMap, adjustedDiffuseUV);
|
|
#else
|
|
gl_FragData[0] = vec4(1.0, 1.0, 1.0, 1.0);
|
|
#endif
|
|
|
|
#if @detailMap
|
|
gl_FragData[0].xyz *= texture2D(detailMap, detailMapUV).xyz * 2.0;
|
|
#endif
|
|
|
|
#if @darkMap
|
|
gl_FragData[0].xyz *= texture2D(darkMap, darkMapUV).xyz;
|
|
#endif
|
|
|
|
#if @decalMap
|
|
vec4 decalTex = texture2D(decalMap, decalMapUV);
|
|
gl_FragData[0].xyz = mix(gl_FragData[0].xyz, decalTex.xyz, decalTex.a);
|
|
#endif
|
|
|
|
#if !PER_PIXEL_LIGHTING
|
|
gl_FragData[0] *= lighting;
|
|
#else
|
|
gl_FragData[0] *= doLighting(passViewPos, normalize(viewNormal), passColor);
|
|
#endif
|
|
|
|
#if @emissiveMap
|
|
gl_FragData[0].xyz += texture2D(emissiveMap, emissiveMapUV).xyz;
|
|
#endif
|
|
|
|
|
|
#if @envMap
|
|
|
|
#if @normalMap
|
|
// if using normal map + env map, take advantage of per-pixel normals for texCoordGen
|
|
vec3 viewVec = normalize(passViewPos.xyz);
|
|
vec3 r = reflect( viewVec, viewNormal );
|
|
float m = 2.0 * sqrt( r.x*r.x + r.y*r.y + (r.z+1.0)*(r.z+1.0) );
|
|
vec2 texCoordGen = vec2(r.x/m + 0.5, r.y/m + 0.5);
|
|
gl_FragData[0].xyz += texture2D(envMap, texCoordGen).xyz * envMapColor.xyz;
|
|
#else
|
|
gl_FragData[0].xyz += texture2D(envMap, envMapUV).xyz * envMapColor.xyz;
|
|
#endif
|
|
|
|
#endif
|
|
|
|
#if @specularMap
|
|
vec4 specTex = texture2D(specularMap, specularMapUV);
|
|
float shininess = specTex.a * 255;
|
|
vec3 matSpec = specTex.xyz;
|
|
#else
|
|
float shininess = gl_FrontMaterial.shininess;
|
|
vec3 matSpec = gl_FrontMaterial.specular.xyz;
|
|
#endif
|
|
|
|
gl_FragData[0].xyz += getSpecular(normalize(viewNormal), normalize(passViewPos.xyz), shininess, matSpec);
|
|
|
|
float fogValue = clamp((depth - gl_Fog.start) * gl_Fog.scale, 0.0, 1.0);
|
|
gl_FragData[0].xyz = mix(gl_FragData[0].xyz, gl_Fog.color.xyz, fogValue);
|
|
}
|