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#version 430
// Single-thread shader: writes a single uint32_t (the draw count to be
// consumed by drawIndirectCount/drawIndexedIndirectCount) into a buffer that
// also serves as a count buffer for the next render pass.
layout (local_size_x = 1) in;
layout(std430, binding = 0) buffer CountBuf
{
uint count;
} buf;
layout(std140, binding = 1) uniform CountIn
{
uint value;
} ubuf;
void main()
{
buf.count = ubuf.value;
}