ld33_umonster: sdr/shadow.v.glsl annotate

ld33_umonster

sweep curve mesh gen and dragon horns

author	John Tsiombikas <nuclear@member.fsf.org>
date	Thu, 27 Aug 2015 05:25:04 +0300
parents	4a6683050e29
children

rev	line source
nuclear@0	1 varying vec3 vdir, ldir, normal;
nuclear@0	2 varying vec4 shadow_tc;
nuclear@0	3
nuclear@0	4 void main()
nuclear@0	5 {
nuclear@0	6 gl_Position = ftransform();
nuclear@0	7
nuclear@0	8 vec3 vpos = (gl_ModelViewMatrix * gl_Vertex).xyz;
nuclear@7	9 normal = normalize(gl_NormalMatrix * gl_Normal);
nuclear@0	10 vdir = -vpos;
nuclear@0	11 ldir = gl_LightSource[0].position.xyz - vpos;
nuclear@0	12 gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0;
nuclear@0	13
nuclear@0	14 mat4 offmat = mat4(0.5, 0.0, 0.0, 0.0,
nuclear@0	15 0.0, 0.5, 0.0, 0.0,
nuclear@0	16 0.0, 0.0, 0.5, 0.0,
nuclear@0	17 0.5, 0.5, 0.5, 1.0);
nuclear@0	18 mat4 tex_matrix = offmat * gl_TextureMatrix[1];
nuclear@0	19
nuclear@0	20 shadow_tc = tex_matrix * vec4(vpos, 1.0);
nuclear@0	21 }