Differential D16284 Diff 56999 source/blender/gpu/shaders/gpu_shader_icon_vert.glsl

Changeset View

Standalone View

				/**
				* Simple shader that just draw one icon at the specified location
				* does not need any vertex input (producing less call to immBegin/End)
				*/

				void main()
				{
				vec2 uv;
				vec2 co;

				if (gl_VertexID == 0) {
				co = rect_geom.xw;
				uv = rect_icon.xw;
				mask_coord_interp = vec2(0, 1);
				}
				else if (gl_VertexID == 1) {
				co = rect_geom.xy;
				uv = rect_icon.xy;
				mask_coord_interp = vec2(0, 0);
				}
				else if (gl_VertexID == 2) {
				co = rect_geom.zw;
				uv = rect_icon.zw;
				mask_coord_interp = vec2(1, 1);
				}
				else {
				co = rect_geom.zy;
				uv = rect_icon.zy;
				mask_coord_interp = vec2(1, 0);
				}

				/* Put origin in lower right corner. */
				mask_coord_interp.x -= 1;

				gl_Position = ModelViewProjectionMatrix * vec4(co, 0.0f, 1.0f);
				texCoord_interp = uv;
				}