OpenGL immediate mode: interface_draw.c (cont)

ui_draw_but_COLORBAND
Introduced a new checker shader to be used mostly on transparent areas.

OpenGL immediate mode: interface_draw.c (cont)

ui_draw_but_UNITVEC
Introduced a new shader to be used for simple lighting.

1 files changed, 24 insertions, 0 deletions

diff --git a/source/blender/gpu/shaders/gpu_shader_checker_frag.glsl b/source/blender/gpu/shaders/gpu_shader_checker_frag.glsl
new file mode 100644
index 00000000000..3b24af916a0
--- /dev/null
+++ b/source/blender/gpu/shaders/gpu_shader_checker_frag.glsl
@@ -0,0 +1,24 @@
+
+uniform vec4 color1;
+uniform vec4 color2;
+uniform int size;
+
+#if __VERSION__ == 120
+  #define fragColor gl_FragColor
+#else
+  out vec4 fragColor;
+#endif
+
+void main()
+{
+	vec2 phase = mod(gl_FragCoord.xy, (size*2));
+
+	if ((phase.x > size && phase.y < size) ||
+		(phase.x < size && phase.y > size))
+	{
+		fragColor = color1;
+	}
+	else {
+		fragColor = color2;
+	}
+}