142 lines
2.8 KiB
GLSL
142 lines
2.8 KiB
GLSL
precision mediump float;
|
|
|
|
/* Definitions */
|
|
|
|
#define Solid 0
|
|
#define Solid2Layer 1
|
|
#define LightMap 2
|
|
#define DetailMap 3
|
|
#define SphereMap 4
|
|
#define Reflection2Layer 5
|
|
#define TransparentAlphaChannel 6
|
|
#define TransparentAlphaChannelRef 7
|
|
#define TransparentVertexAlpha 8
|
|
#define TransparentReflection2Layer 9
|
|
|
|
/* Uniforms */
|
|
|
|
uniform int uMaterialType;
|
|
|
|
uniform bool uTextureUsage0;
|
|
uniform bool uTextureUsage1;
|
|
|
|
uniform sampler2D uTextureUnit0;
|
|
uniform sampler2D uTextureUnit1;
|
|
|
|
/* Varyings */
|
|
|
|
varying vec2 varTexCoord0;
|
|
varying vec2 varTexCoord1;
|
|
varying vec4 varVertexColor;
|
|
varying float varEyeDist;
|
|
|
|
vec4 renderSolid()
|
|
{
|
|
vec4 Color = varVertexColor;
|
|
|
|
if(uTextureUsage0)
|
|
Color *= texture2D(uTextureUnit0, varTexCoord0);
|
|
|
|
Color.a = 1.0;
|
|
|
|
return Color;
|
|
}
|
|
|
|
vec4 render2LayerSolid()
|
|
{
|
|
float BlendFactor = varVertexColor.a;
|
|
|
|
vec4 Texel0 = texture2D(uTextureUnit0, varTexCoord0);
|
|
vec4 Texel1 = texture2D(uTextureUnit1, varTexCoord1);
|
|
|
|
vec4 Color = Texel0 * BlendFactor + Texel1 * (1.0 - BlendFactor);
|
|
|
|
return Color;
|
|
}
|
|
|
|
vec4 renderLightMap()
|
|
{
|
|
vec4 Texel0 = texture2D(uTextureUnit0, varTexCoord0);
|
|
vec4 Texel1 = texture2D(uTextureUnit1, varTexCoord1);
|
|
|
|
vec4 Color = Texel0 * Texel1 * 4.0;
|
|
Color.a = Texel0.a * Texel0.a;
|
|
|
|
return Color;
|
|
}
|
|
|
|
vec4 renderDetailMap()
|
|
{
|
|
vec4 Texel0 = texture2D(uTextureUnit0, varTexCoord0);
|
|
vec4 Texel1 = texture2D(uTextureUnit1, varTexCoord1);
|
|
|
|
vec4 Color = Texel0;
|
|
Color += Texel1 - 0.5;
|
|
|
|
return Color;
|
|
}
|
|
|
|
vec4 renderReflection2Layer()
|
|
{
|
|
vec4 Color = varVertexColor;
|
|
|
|
vec4 Texel0 = texture2D(uTextureUnit0, varTexCoord0);
|
|
vec4 Texel1 = texture2D(uTextureUnit1, varTexCoord1);
|
|
|
|
Color *= Texel0 * Texel1;
|
|
|
|
return Color;
|
|
}
|
|
|
|
vec4 renderTransparent()
|
|
{
|
|
vec4 Color = vec4(1.0, 1.0, 1.0, 1.0);
|
|
|
|
if(uTextureUsage0)
|
|
Color *= texture2D(uTextureUnit0, varTexCoord0);
|
|
|
|
return Color;
|
|
}
|
|
|
|
void main ()
|
|
{
|
|
if (uMaterialType == Solid)
|
|
gl_FragColor = renderSolid();
|
|
else if(uMaterialType == Solid2Layer)
|
|
gl_FragColor = render2LayerSolid();
|
|
else if(uMaterialType == LightMap)
|
|
gl_FragColor = renderLightMap();
|
|
else if(uMaterialType == DetailMap)
|
|
gl_FragColor = renderDetailMap();
|
|
else if(uMaterialType == SphereMap)
|
|
gl_FragColor = renderSolid();
|
|
else if(uMaterialType == Reflection2Layer)
|
|
gl_FragColor = renderReflection2Layer();
|
|
else if(uMaterialType == TransparentAlphaChannel)
|
|
gl_FragColor = renderTransparent();
|
|
else if(uMaterialType == TransparentAlphaChannelRef)
|
|
{
|
|
vec4 Color = renderTransparent();
|
|
|
|
if (Color.a < 0.5)
|
|
discard;
|
|
|
|
gl_FragColor = Color;
|
|
}
|
|
else if(uMaterialType == TransparentVertexAlpha)
|
|
{
|
|
vec4 Color = renderTransparent();
|
|
Color.a = varVertexColor.a;
|
|
|
|
gl_FragColor = Color;
|
|
}
|
|
else if(uMaterialType == TransparentReflection2Layer)
|
|
{
|
|
vec4 Color = renderReflection2Layer();
|
|
Color.a = varVertexColor.a;
|
|
|
|
gl_FragColor = Color;
|
|
}
|
|
else
|
|
gl_FragColor = vec4(1.0, 1.0, 1.0, 1.0);
|
|
} |