From e2d40c3fb1723eb1dde87248a08f489d26b684f6 Mon Sep 17 00:00:00 2001 From: Vegard Storheil Eriksen Date: Sun, 27 Jun 2010 02:56:55 +0200 Subject: Simplified rotation shader code. --- shaders/bullet_fragment.glsl | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) (limited to 'shaders/bullet_fragment.glsl') diff --git a/shaders/bullet_fragment.glsl b/shaders/bullet_fragment.glsl index 5e8becd..55e29ff 100644 --- a/shaders/bullet_fragment.glsl +++ b/shaders/bullet_fragment.glsl @@ -1,12 +1,9 @@ -varying mat4 v_tex_rot; +varying mat3 v_tex_rot; uniform sampler2D tex; void main() { vec2 l_uv = gl_TexCoord[0].xy; - const vec2 l_offset = vec2(0.5, 0.5); - l_uv -= l_offset; - l_uv = vec2(v_tex_rot * vec4(l_uv, 0.0, 1.0)); - l_uv += l_offset; + l_uv = vec2(v_tex_rot * vec3(l_uv, 0.5)); gl_FragColor = texture2D(tex, l_uv); float M = max(max(gl_FragColor.x, gl_FragColor.y), gl_FragColor.z); float C = M - min(min(gl_FragColor.x, gl_FragColor.y), gl_FragColor.z); -- cgit v1.2.3