tavli
annotate sdr/shadow.v.glsl @ 23:3e6430028d54
slot highlghting
| author | John Tsiombikas <nuclear@member.fsf.org> |
|---|---|
| date | Wed, 08 Jul 2015 02:31:36 +0300 |
| parents | 986c0b76513f |
| children |
| rev | line source |
|---|---|
| nuclear@18 | 1 varying vec3 vdir, ldir, normal; |
| nuclear@18 | 2 varying vec4 shadow_tc; |
| nuclear@18 | 3 |
| nuclear@18 | 4 void main() |
| nuclear@18 | 5 { |
| nuclear@18 | 6 gl_Position = ftransform(); |
| nuclear@18 | 7 |
| nuclear@18 | 8 vec3 vpos = (gl_ModelViewMatrix * gl_Vertex).xyz; |
| nuclear@18 | 9 normal = gl_NormalMatrix * gl_Normal; |
| nuclear@18 | 10 vdir = -vpos; |
| nuclear@18 | 11 ldir = gl_LightSource[0].position.xyz - vpos; |
| nuclear@18 | 12 gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0; |
| nuclear@18 | 13 |
| nuclear@18 | 14 mat4 offmat = mat4(0.5, 0.0, 0.0, 0.0, |
| nuclear@18 | 15 0.0, 0.5, 0.0, 0.0, |
| nuclear@18 | 16 0.0, 0.0, 0.5, 0.0, |
| nuclear@18 | 17 0.5, 0.5, 0.5, 1.0); |
| nuclear@18 | 18 mat4 tex_matrix = offmat * gl_TextureMatrix[1]; |
| nuclear@18 | 19 |
| nuclear@19 | 20 shadow_tc = tex_matrix * vec4(vpos, 1.0); |
| nuclear@18 | 21 } |