add color to sprite ssbo

shaders/sprite_ssbo.cg

@@ -7,12 +7,14 @@
 in vec3 a_pos;
 in vec2 a_uv;
 out vec2 uv;
+out vec4 shade;
  
 vec3 pos;
 
 struct sprite {
   mat4 model;
   vec4 rect;
+  vec4 shade;
 };
 
 readonly buffer ssbo {
@@ -32,19 +34,20 @@ void main()
   pos *= vec3(diffuse_size * s.rect.zw,1);
   uv = (uv*s.rect.zw)+s.rect.xy;
   gl_Position =  vp * s.model * vec4(pos, 1.0);
+  shade = s.shade;
 }
 @end
 
 @fs fs
 
 in vec2 uv;
+in vec4 shade;
 
 out vec4 color;
 
 texture2D diffuse;
 sampler smp;
 
-uniform vec4 shade;
 void frag()
 {
   color = texture(sampler2D(diffuse,smp), uv);