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Diffstat (limited to '3rdparty/bgfx/examples/41-tess/cs_terrain_init.sc')
-rw-r--r--3rdparty/bgfx/examples/41-tess/cs_terrain_init.sc43
1 files changed, 43 insertions, 0 deletions
diff --git a/3rdparty/bgfx/examples/41-tess/cs_terrain_init.sc b/3rdparty/bgfx/examples/41-tess/cs_terrain_init.sc
new file mode 100644
index 00000000000..b15f2397024
--- /dev/null
+++ b/3rdparty/bgfx/examples/41-tess/cs_terrain_init.sc
@@ -0,0 +1,43 @@
+#include "bgfx_compute.sh"
+
+#include "uniforms.sh"
+
+BUFFER_WR(u_SubdBufferOut, uint, 1);
+BUFFER_RW(u_CulledSubdBuffer, uint, 2);
+BUFFER_RW(indirectBuffer, uvec4, 3);
+BUFFER_RW(atomicCounterBuffer, uint, 4);
+BUFFER_WR(u_SubdBufferIn, uint, 8);
+
+NUM_THREADS(1u, 1u, 1u)
+void main()
+{
+ uint subd = 6 << (2 * u_gpu_subd - 1);
+
+ if((2 * u_gpu_subd - 1) <= 0) {
+ subd = 3u;
+ }
+
+ drawIndexedIndirect(indirectBuffer, 0u, subd, 0u, 0u, 0u, 0u);
+ dispatchIndirect(indirectBuffer, 1u, 2u / UPDATE_INDIRECT_VALUE_DIVIDE + 1u, 1u, 1u);
+
+ u_SubdBufferOut[0] = 0;
+ u_SubdBufferOut[1] = 1;
+ u_SubdBufferOut[2] = 1;
+ u_SubdBufferOut[3] = 1;
+
+ u_CulledSubdBuffer[0] = 0;
+ u_CulledSubdBuffer[1] = 1;
+ u_CulledSubdBuffer[2] = 1;
+ u_CulledSubdBuffer[3] = 1;
+
+ u_SubdBufferIn[0] = 0;
+ u_SubdBufferIn[1] = 1;
+ u_SubdBufferIn[2] = 1;
+ u_SubdBufferIn[3] = 1;
+
+ uint tmp;
+
+ atomicFetchAndExchange(atomicCounterBuffer[0], 0, tmp);
+ atomicFetchAndExchange(atomicCounterBuffer[1], 0, tmp);
+ atomicFetchAndExchange(atomicCounterBuffer[2], 2, tmp);
+}