27 lines
636 B
Python
27 lines
636 B
Python
|
/*
|
||
|
|
* Copyright 2018 Kostas Anagnostou. All rights reserved.
|
||
|
|
* License: https://github.com/bkaradzic/bgfx#license-bsd-2-clause
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "bgfx_compute.sh"
|
||
|
|
|
||
|
|
SAMPLER2D(s_texOcclusionDepth, 0);
|
||
|
|
IMAGE2D_WR(s_texOcclusionDepthOut, r32f, 1);
|
||
|
|
|
||
|
|
uniform vec4 u_inputRTSize;
|
||
|
|
|
||
|
|
NUM_THREADS(16, 16, 1)
|
||
|
|
void main()
|
||
|
|
{
|
||
|
|
// this shader can be used to both copy a mip over to the output and downscale it.
|
||
|
|
|
||
|
|
ivec2 coord = ivec2(gl_GlobalInvocationID.xy);
|
||
|
|
|
||
|
|
if (all(lessThan(coord.xy, u_inputRTSize.xy) ) )
|
||
|
|
{
|
||
|
|
float maxDepth = texelFetch(s_texOcclusionDepth, coord.xy, 0).x;
|
||
|
|
|
||
|
|
imageStore(s_texOcclusionDepthOut, coord, vec4(maxDepth,0,0,1) );
|
||
|
|
}
|
||
|
|
}
|