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-rw-r--r--3rdparty/bgfx/examples/41-tess/cs_terrain_update_indirect.sc23
1 files changed, 23 insertions, 0 deletions
diff --git a/3rdparty/bgfx/examples/41-tess/cs_terrain_update_indirect.sc b/3rdparty/bgfx/examples/41-tess/cs_terrain_update_indirect.sc
new file mode 100644
index 00000000000..96041814553
--- /dev/null
+++ b/3rdparty/bgfx/examples/41-tess/cs_terrain_update_indirect.sc
@@ -0,0 +1,23 @@
+#include "bgfx_compute.sh"
+#include "uniforms.sh"
+
+BUFFER_RW(indirectBuffer, uvec4, 3);
+BUFFER_RW(atomicCounterBuffer, uint, 4);
+
+NUM_THREADS(1u, 1u, 1u)
+void main()
+{
+ uint counter;
+ uint counter2;
+
+ atomicFetchAndExchange(atomicCounterBuffer[0], 0u, counter);
+ atomicFetchAndExchange(atomicCounterBuffer[1], 0u, counter2);
+
+ uint cnt = (counter / 2u) / UPDATE_INDIRECT_VALUE_DIVIDE + 1u;
+
+ uint tmp;
+
+ atomicFetchAndExchange(atomicCounterBuffer[2], (counter / 2), tmp);
+
+ dispatchIndirect(indirectBuffer, 1u, cnt, 1u, 1u);
+}