source/blender/gpu/shaders/gpu_shader_text_simple_vert.glsl


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/* Simpler version of gpu_shader_text_vert that supports only 2D translation. */

uniform mat4 ModelViewProjectionMatrix;

in vec4 pos; /* rect */
in vec4 tex; /* rect */
in vec4 col;

out vec4 pos_rect;
out vec4 tex_rect;
out vec4 color;

void main()
{
  /* Manual mat4*vec2 */
  pos_rect = ModelViewProjectionMatrix[0].xyxy * pos.xxzz;
  pos_rect += ModelViewProjectionMatrix[1].xyxy * pos.yyww;
  pos_rect += ModelViewProjectionMatrix[3].xyxy;
  tex_rect = tex;
  color = col;
}