1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
|
uniform sampler2DShadow shadowTex;
uniform sampler2D diffuseTex;
uniform vec3 groundAmbientColor;
uniform float groundShadowDensity;
uniform mat4 shadowMatrix;
uniform vec4 shadowParams;
#if (defined(TREE_NEAR_SHADOW) || defined(TREE_DIST_SHADOW))
varying float fogFactor;
#endif
void main() {
#if (defined(TREE_NEAR_SHADOW) || defined(TREE_DIST_SHADOW))
vec4 vertexPos = gl_TexCoord[2];
vec4 vertexShadowPos = shadowMatrix * vertexPos;
vertexShadowPos.xy *= (inversesqrt(abs(vertexShadowPos.xy) + shadowParams.zz) + shadowParams.ww);
vertexShadowPos.xy += shadowParams.xy;
float shadowCoeff = mix(1.0, shadow2DProj(shadowTex, vertexShadowPos).r, groundShadowDensity);
#else
float shadowCoeff = 1.0;
#endif
vec4 diffuseCol = texture2D(diffuseTex, gl_TexCoord[1].st);
vec3 shadeInt = mix(groundAmbientColor.rgb, gl_Color.rgb, shadowCoeff);
gl_FragColor.rgb = diffuseCol.rgb * shadeInt.rgb;
#if (defined(TREE_NEAR_SHADOW) || defined(TREE_DIST_SHADOW))
gl_FragColor.rgb = mix(gl_Fog.color.rgb, gl_FragColor.rgb, fogFactor);
#endif
gl_FragColor.a = diffuseCol.a;
}
|
