Add diagonal stripe shader (GPU_SHADER_2D_DIAG_STRIPES)

Reviewed By: merwin

Differential Revision: https://developer.blender.org/D2512

1 files changed, 24 insertions, 0 deletions

diff --git a/source/blender/gpu/shaders/gpu_shader_diag_stripes_frag.glsl b/source/blender/gpu/shaders/gpu_shader_diag_stripes_frag.glsl
new file mode 100644
index 00000000000..74cf1c5a3dc
--- /dev/null
+++ b/source/blender/gpu/shaders/gpu_shader_diag_stripes_frag.glsl
@@ -0,0 +1,24 @@
+
+uniform vec4 color1;
+uniform vec4 color2;
+uniform int size1;
+uniform int size2;
+
+#if __VERSION__ == 120
+  #define fragColor gl_FragColor
+#else
+  out vec4 fragColor;
+#endif
+
+void main()
+{
+	float phase = mod((gl_FragCoord.x + gl_FragCoord.y), (size1 + size2));
+
+	if (phase < size1)
+	{
+		fragColor = color1;
+	}
+	else {
+		fragColor = color2;
+	}
+}