b57ea6a182
git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@10739 178a84e3-b1eb-0310-8ba1-8eac791a3b58
28 lines
733 B
GLSL
28 lines
733 B
GLSL
// Shader based on work by Fabien Sanglard
|
|
// Released under the terms of CC-BY 3.0
|
|
|
|
uniform sampler2D BumpTex; //The bump-map
|
|
uniform sampler2D DecalTex; //The texture
|
|
|
|
// New bumpmapping
|
|
varying vec3 lightVec;
|
|
varying vec3 halfVec;
|
|
varying vec3 eyeVec;
|
|
|
|
|
|
void main()
|
|
{
|
|
// lookup normal from normal map, move from [0,1] to [-1, 1] range, normalize
|
|
vec3 normal = 2.0 * texture2D (BumpTex, gl_TexCoord[0].st).rgb - 1.0;
|
|
normal = normalize (normal);
|
|
|
|
// compute diffuse lighting
|
|
float lamberFactor = max (dot (lightVec, normal), 0.0) ;
|
|
vec4 diffuseMaterial;
|
|
|
|
diffuseMaterial = texture2D (DecalTex, gl_TexCoord[0].st);
|
|
|
|
// 0.4 is the ambient light
|
|
gl_FragColor = diffuseMaterial * (0.5 + lamberFactor*0.5);
|
|
}
|