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-rw-r--r--gfx/gl/shaders/commonShadowPoint.gs22
1 files changed, 22 insertions, 0 deletions
diff --git a/gfx/gl/shaders/commonShadowPoint.gs b/gfx/gl/shaders/commonShadowPoint.gs
new file mode 100644
index 0000000..b008f29
--- /dev/null
+++ b/gfx/gl/shaders/commonShadowPoint.gs
@@ -0,0 +1,22 @@
+#version 330 core
+#extension GL_ARB_viewport_array : enable
+
+uniform mat4 viewProjection[4];
+uniform int viewProjections;
+in vec4 vworldPos[];
+layout(triangles) in;
+layout(triangle_strip, max_vertices = 12) out;
+
+void
+main()
+{
+ for (int vp = 0; vp < viewProjections; ++vp) {
+ for (int v = 0; v < vworldPos.length(); ++v) {
+ gl_Position = viewProjection[vp] * vworldPos[v];
+ gl_Position.z = max(gl_Position.z, -1);
+ gl_Layer = vp;
+ EmitVertex();
+ }
+ EndPrimitive();
+ }
+}