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replaced Light Shader by optimized Light Shader

This commit is contained in:
songchengjiang 2014-08-27 23:40:49 +08:00
parent 26dc7de802
commit 365c57bc2b
4 changed files with 92 additions and 62 deletions
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25
cocos/renderer/CCGLProgram.cpp
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@ -449,14 +449,17 @@ bool GLProgram::compileShader(GLuint * shader, GLenum type, const GLchar* source
"uniform vec3 CC_DirLightSourceDirection[CC_MAX_DIRECTIONAL_LIGHT_NUM]; \n"
"#endif \n"
"#if CC_MAX_POINT_LIGHT_NUM \n"
"uniform vec4 CC_PointLightSourceColor[CC_MAX_POINT_LIGHT_NUM]; \n"
"uniform vec3 CC_PointLightSourceColor[CC_MAX_POINT_LIGHT_NUM]; \n"
"uniform vec3 CC_PointLightSourcePosition[CC_MAX_POINT_LIGHT_NUM]; \n"
"uniform float CC_PointLightSourceRangeInverse[CC_MAX_POINT_LIGHT_NUM]; \n"
"#endif \n"
"#if CC_MAX_SPOT_LIGHT_NUM \n"
"uniform vec3 CC_SpotLightSourceColor[CC_MAX_SPOT_LIGHT_NUM]; \n"
"uniform vec3 CC_SpotLightSourcePosition[CC_MAX_SPOT_LIGHT_NUM]; \n"
"uniform vec3 CC_SpotLightSourceDirection[CC_MAX_SPOT_LIGHT_NUM]; \n"
"uniform vec3 CC_SpotLightSourceParams[CC_MAX_SPOT_LIGHT_NUM]; \n"
"uniform float CC_SpotLightSourceInnerAngleCos[CC_MAX_SPOT_LIGHT_NUM]; \n"
"uniform float CC_SpotLightSourceOuterAngleCos[CC_MAX_SPOT_LIGHT_NUM]; \n"
"uniform float CC_SpotLightSourceRangeInverse[CC_MAX_SPOT_LIGHT_NUM]; \n"
"#endif \n"
"uniform vec4 CC_AmbientColor; \n"
};
@ -556,9 +559,9 @@ void GLProgram::updateUniforms()
// _builtInUniforms[UNIFORM_ENABLED_SPOT_LIGHT_NUM] != -1
// );
_flags.usesLights = CC_MAX_DIRECTIONAL_LIGHT_NUM ||
CC_MAX_POINT_LIGHT_NUM ||
CC_MAX_SPOT_LIGHT_NUM;
_flags.usesLights = (0 < CC_MAX_DIRECTIONAL_LIGHT_NUM) ||
(0 < CC_MAX_POINT_LIGHT_NUM) ||
(0 < CC_MAX_SPOT_LIGHT_NUM);
_flags.usesP = _builtInUniforms[UNIFORM_P_MATRIX] != -1;
_flags.usesMV = _builtInUniforms[UNIFORM_MV_MATRIX] != -1;
_flags.usesMVP = _builtInUniforms[UNIFORM_MVP_MATRIX] != -1;
@ -1005,9 +1008,11 @@ void GLProgram::setUniformsForBuiltins(const Mat4 &matrixMV)
CCASSERT(enabledPointLightNum < CC_MAX_POINT_LIGHT_NUM, "");
Mat4 mat= light->getNodeToWorldTransform();
sprintf(str, "CC_PointLightSourceColor[%d]", enabledPointLightNum);
setUniformLocationWith4f(glGetUniformLocation(_program, str), col.r / 255.0f, col.g / 255.0f, col.b / 255.0f, 1.0f / light->getRange());
setUniformLocationWith3f(glGetUniformLocation(_program, str), col.r / 255.0f, col.g / 255.0f, col.b / 255.0f);
sprintf(str, "CC_PointLightSourcePosition[%d]", enabledPointLightNum);
setUniformLocationWith3f(glGetUniformLocation(_program, str), mat.m[12], mat.m[13], mat.m[14]);
sprintf(str, "CC_PointLightSourceRangeInverse[%d]", enabledPointLightNum);
setUniformLocationWith1f(glGetUniformLocation(_program, str), 1.0f / light->getRange());
++enabledPointLightNum;
}
else
@ -1022,8 +1027,12 @@ void GLProgram::setUniformsForBuiltins(const Mat4 &matrixMV)
setUniformLocationWith3f(glGetUniformLocation(_program, str), mat.m[12], mat.m[13], mat.m[14]);
sprintf(str, "CC_SpotLightSourceDirection[%d]", enabledSpotLightNum);
setUniformLocationWith3f(glGetUniformLocation(_program, str), dir.x, dir.y, dir.z);
sprintf(str, "CC_SpotLightSourceParams[%d]", enabledSpotLightNum);
setUniformLocationWith3f(glGetUniformLocation(_program, str), cosf(light->getInnerAngle()), cosf(light->getOuterAngle()), 1.0f / light->getRange());
sprintf(str, "CC_SpotLightSourceInnerAngleCos[%d]", enabledSpotLightNum);
setUniformLocationWith1f(glGetUniformLocation(_program, str), cosf(light->getInnerAngle()));
sprintf(str, "CC_SpotLightSourceOuterAngleCos[%d]", enabledSpotLightNum);
setUniformLocationWith1f(glGetUniformLocation(_program, str), cosf(light->getOuterAngle()));
sprintf(str, "CC_SpotLightSourceRangeInverse[%d]", enabledSpotLightNum);
setUniformLocationWith1f(glGetUniformLocation(_program, str), 1.0f / light->getRange());
++enabledSpotLightNum;
}
}

60
cocos/renderer/ccShader_3D_ColorNormal.frag
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@ -27,53 +27,63 @@ varying vec3 v_normal;
uniform vec4 u_color;
vec3 computeLighting(vec3 normalVector, vec3 lightDirection, vec3 lightColor, float attenuation)
{
float diffuse = max(dot(normalVector, lightDirection), 0.0);
vec3 diffuseColor = lightColor * diffuse * attenuation;
return diffuseColor;
}
void main(void)
{
vec4 intensity = vec4(0.0, 0.0, 0.0, 1.0);
\n#if (CC_MAX_DIRECTIONAL_LIGHT_NUM || CC_MAX_POINT_LIGHT_NUM || CC_MAX_SPOT_LIGHT_NUM)\n
\n#if ((CC_MAX_DIRECTIONAL_LIGHT_NUM > 0) || (CC_MAX_POINT_LIGHT_NUM > 0) || (CC_MAX_SPOT_LIGHT_NUM > 0))\n
vec3 normal = normalize(v_normal);
\n#endif\n
vec4 combinedColor = CC_AmbientColor;
// Directional light contribution
\n#if (CC_MAX_DIRECTIONAL_LIGHT_NUM > 0)\n
for (int n = 0; n < CC_MAX_DIRECTIONAL_LIGHT_NUM; ++n)
for (int i = 0; i < CC_MAX_DIRECTIONAL_LIGHT_NUM; ++i)
{
intensity.xyz += CC_DirLightSourceColor[n] * max(0.0, dot(-CC_DirLightSourceDirection[n], normal));
vec3 lightDirection = normalize(CC_DirLightSourceDirection[i] * 2.0);
combinedColor.xyz += computeLighting(normal, -lightDirection, CC_DirLightSourceColor[i], 1.0);
}
\n#endif\n
// Point light contribution
\n#if (CC_MAX_POINT_LIGHT_NUM > 0)\n
for (int n = 0; n < CC_MAX_POINT_LIGHT_NUM; ++n)
for (int i = 0; i < CC_MAX_POINT_LIGHT_NUM; ++i)
{
vec3 dir = v_vertexToPointLightDirection[n];
vec3 ldir = dir * CC_PointLightSourceColor[n].w;
vec3 ldir = v_vertexToPointLightDirection[i] * CC_PointLightSourceRangeInverse[i];
float attenuation = clamp(1.0 - dot(ldir, ldir), 0.0, 1.0);
intensity.xyz += CC_PointLightSourceColor[n] * max(0.0, dot(normalize(dir), normal)) * attenuation;
combinedColor.xyz += computeLighting(normal, normalize(v_vertexToPointLightDirection[i]), CC_PointLightSourceColor[i], attenuation);
}
\n#endif\n
// Spot light contribution
\n#if (CC_MAX_SPOT_LIGHT_NUM > 0)\n
for (int n = 0; n < CC_MAX_SPOT_LIGHT_NUM; ++n)
for (int i = 0; i < CC_MAX_SPOT_LIGHT_NUM; ++i)
{
vec3 dir = v_vertexToSpotLightDirection[n];
vec3 ldir = dir * CC_SpotLightSourceParams[n].z;
// Compute range attenuation
vec3 ldir = v_vertexToSpotLightDirection[i] * CC_SpotLightSourceRangeInverse[i];
float attenuation = clamp(1.0 - dot(ldir, ldir), 0.0, 1.0);
dir = normalize(dir);
float spotDot = dot(normalize(dir), -CC_SpotLightSourceDirection[n]);
float innerCos = CC_SpotLightSourceParams[n].x;
float outerCos = CC_SpotLightSourceParams[n].y;
float factor = smoothstep(outerCos, innerCos, spotDot);
intensity.xyz += CC_SpotLightSourceColor[n] * max(0.0, dot(normalize(dir), normal)) * factor * attenuation;
}
vec3 vertexToSpotLightDirection = normalize(v_vertexToSpotLightDirection[i]);
vec3 spotLightDirection = normalize(CC_SpotLightSourceDirection[i] * 2.0);
// "-lightDirection" is used because light direction points in opposite direction to spot direction.
float spotCurrentAngleCos = dot(spotLightDirection, -vertexToSpotLightDirection);
// Apply spot attenuation
attenuation *= smoothstep(CC_SpotLightSourceOuterAngleCos[i], CC_SpotLightSourceInnerAngleCos[i], spotCurrentAngleCos);
combinedColor.xyz += computeLighting(normal, vertexToSpotLightDirection, CC_SpotLightSourceColor[i], attenuation);
}
\n#endif\n
\n#if (CC_MAX_DIRECTIONAL_LIGHT_NUM || CC_MAX_POINT_LIGHT_NUM || CC_MAX_SPOT_LIGHT_NUM)\n
gl_FragColor = u_color * (CC_AmbientColor + intensity);
\n#if ((CC_MAX_DIRECTIONAL_LIGHT_NUM > 0) || (CC_MAX_POINT_LIGHT_NUM > 0) || (CC_MAX_SPOT_LIGHT_NUM > 0))\n
gl_FragColor = u_color * combinedColor;
\n#else\n
gl_FragColor = u_color;
\n#endif\n

63
cocos/renderer/ccShader_3D_ColorNormalTex.frag
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@ -27,55 +27,66 @@ varying vec3 v_normal;
uniform vec4 u_color;
vec3 computeLighting(vec3 normalVector, vec3 lightDirection, vec3 lightColor, float attenuation)
{
float diffuse = max(dot(normalVector, lightDirection), 0.0);
vec3 diffuseColor = lightColor * diffuse * attenuation;
return diffuseColor;
}
void main(void)
{
vec4 intensity = vec4(0.0, 0.0, 0.0, 1.0);
\n#if (CC_MAX_DIRECTIONAL_LIGHT_NUM || CC_MAX_POINT_LIGHT_NUM || CC_MAX_SPOT_LIGHT_NUM)\n
\n#if ((CC_MAX_DIRECTIONAL_LIGHT_NUM > 0) || (CC_MAX_POINT_LIGHT_NUM > 0) || (CC_MAX_SPOT_LIGHT_NUM > 0))\n
vec3 normal = normalize(v_normal);
\n#endif\n
vec4 combinedColor = CC_AmbientColor;
// Directional light contribution
\n#if (CC_MAX_DIRECTIONAL_LIGHT_NUM > 0)\n
for (int n = 0; n < CC_MAX_DIRECTIONAL_LIGHT_NUM; ++n)
for (int i = 0; i < CC_MAX_DIRECTIONAL_LIGHT_NUM; ++i)
{
intensity.xyz += CC_DirLightSourceColor[n] * max(0.0, dot(-CC_DirLightSourceDirection[n], normal));
vec3 lightDirection = normalize(CC_DirLightSourceDirection[i] * 2.0);
combinedColor.xyz += computeLighting(normal, -lightDirection, CC_DirLightSourceColor[i], 1.0);
}
\n#endif\n
// Point light contribution
\n#if (CC_MAX_POINT_LIGHT_NUM > 0)\n
for (int n = 0; n < CC_MAX_POINT_LIGHT_NUM; ++n)
for (int i = 0; i < CC_MAX_POINT_LIGHT_NUM; ++i)
{
vec3 dir = v_vertexToPointLightDirection[n];
vec3 ldir = dir * CC_PointLightSourceColor[n].w;
vec3 ldir = v_vertexToPointLightDirection[i] * CC_PointLightSourceRangeInverse[i];
float attenuation = clamp(1.0 - dot(ldir, ldir), 0.0, 1.0);
intensity.xyz += CC_PointLightSourceColor[n] * max(0.0, dot(normalize(dir), normal)) * attenuation;
combinedColor.xyz += computeLighting(normal, normalize(v_vertexToPointLightDirection[i]), CC_PointLightSourceColor[i], attenuation);
}
\n#endif\n
// Spot light contribution
\n#if (CC_MAX_SPOT_LIGHT_NUM > 0)\n
for (int n = 0; n < CC_MAX_SPOT_LIGHT_NUM; ++n)
for (int i = 0; i < CC_MAX_SPOT_LIGHT_NUM; ++i)
{
vec3 dir = v_vertexToSpotLightDirection[n];
vec3 ldir = dir * CC_SpotLightSourceParams[n].z;
// Compute range attenuation
vec3 ldir = v_vertexToSpotLightDirection[i] * CC_SpotLightSourceRangeInverse[i];
float attenuation = clamp(1.0 - dot(ldir, ldir), 0.0, 1.0);
dir = normalize(dir);
float spotDot = dot(normalize(dir), -CC_SpotLightSourceDirection[n]);
float innerCos = CC_SpotLightSourceParams[n].x;
float outerCos = CC_SpotLightSourceParams[n].y;
float factor = smoothstep(outerCos, innerCos, spotDot);
intensity.xyz += CC_SpotLightSourceColor[n] * max(0.0, dot(normalize(dir), normal)) * factor * attenuation;
}
vec3 vertexToSpotLightDirection = normalize(v_vertexToSpotLightDirection[i]);
vec3 spotLightDirection = normalize(CC_SpotLightSourceDirection[i] * 2.0);
// "-lightDirection" is used because light direction points in opposite direction to spot direction.
float spotCurrentAngleCos = dot(spotLightDirection, -vertexToSpotLightDirection);
// Apply spot attenuation
attenuation *= smoothstep(CC_SpotLightSourceOuterAngleCos[i], CC_SpotLightSourceInnerAngleCos[i], spotCurrentAngleCos);
combinedColor.xyz += computeLighting(normal, vertexToSpotLightDirection, CC_SpotLightSourceColor[i], attenuation);
}
\n#endif\n
\n#if (CC_MAX_DIRECTIONAL_LIGHT_NUM || CC_MAX_POINT_LIGHT_NUM || CC_MAX_SPOT_LIGHT_NUM)\n
gl_FragColor = texture2D(CC_Texture0, TextureCoordOut) * u_color * (CC_AmbientColor + intensity);
\n#if ((CC_MAX_DIRECTIONAL_LIGHT_NUM > 0) || (CC_MAX_POINT_LIGHT_NUM > 0) || (CC_MAX_SPOT_LIGHT_NUM > 0))\n
gl_FragColor = texture2D(CC_Texture0, TextureCoordOut) * u_color * combinedColor;
\n#else\n
gl_FragColor = texture2D(CC_Texture0, TextureCoordOut) * u_color;
gl_FragColor = texture2D(CC_Texture0, TextureCoordOut) * u_color;
\n#endif\n
}

6
cocos/renderer/ccShader_3D_PositionNormalTex.vert
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@ -31,7 +31,7 @@ void main(void)
}
\n#endif\n
\n#if (CC_MAX_DIRECTIONAL_LIGHT_NUM || CC_MAX_POINT_LIGHT_NUM || CC_MAX_SPOT_LIGHT_NUM)\n
\n#if ((CC_MAX_DIRECTIONAL_LIGHT_NUM > 0) || (CC_MAX_POINT_LIGHT_NUM > 0) || (CC_MAX_SPOT_LIGHT_NUM > 0))\n
v_normal = CC_NormalMatrix * a_normal;
\n#endif\n
@ -112,7 +112,7 @@ void getPositionAndNormal(out vec4 position, out vec3 normal)
position.z = dot(p, matrixPalette3);
position.w = p.w;
\n#if (CC_MAX_DIRECTIONAL_LIGHT_NUM || CC_MAX_POINT_LIGHT_NUM || CC_MAX_SPOT_LIGHT_NUM)\n
\n#if ((CC_MAX_DIRECTIONAL_LIGHT_NUM > 0) || (CC_MAX_POINT_LIGHT_NUM > 0) || (CC_MAX_SPOT_LIGHT_NUM > 0))\n
vec4 n = vec4(a_normal, 0.0);
normal.x = dot(n, matrixPalette1);
normal.y = dot(n, matrixPalette2);
@ -141,7 +141,7 @@ void main()
}
\n#endif\n
\n#if (CC_MAX_DIRECTIONAL_LIGHT_NUM || CC_MAX_POINT_LIGHT_NUM || CC_MAX_SPOT_LIGHT_NUM)\n
\n#if ((CC_MAX_DIRECTIONAL_LIGHT_NUM > 0) || (CC_MAX_POINT_LIGHT_NUM > 0) || (CC_MAX_SPOT_LIGHT_NUM > 0))\n
v_normal = CC_NormalMatrix * normal;
\n#endif\n