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shaders/font.frag

@@ -1,9 +1,9 @@
 #version 330 core
 in vec2 v_TexCoords;
+in vec4 textColor;
 out vec4 FragColor;
 
 uniform sampler2D text;
-uniform vec4 textColor;
 
 const float smoothness = 0.05;
 const float outlineDistance = 0.50;

shaders/font.vert

@@ -4,9 +4,11 @@ layout (location = 0) in vec2 vertex;
 // per instance
 layout (location = 1) in vec4 offset;
 layout (location = 2) in int tex_index;
-layout (location = 3) in mat4 model; // this takes locations 3,4,5,6
+layout (location = 3) in vec4 color;
+layout (location = 4) in mat4 model; // this takes locations 4,5,6,7
 
 out vec2 v_TexCoords;
+out vec4 textColor;
 uniform mat4 projection;
 // buffer for all the 96 ascii characters' texcoords
 uniform vec2 texcoords[96 * 4];
@@ -15,4 +17,5 @@ void main() {
   vec2 pos = vec2((vertex.x) * offset.z, (vertex.y) * offset.w);
   gl_Position = projection * model * vec4(pos + offset.xy, 0.0, 1.0);
   v_TexCoords = texcoords[tex_index * 4 + gl_VertexID];
+  textColor = color;
 }