claude_code/procedural-3d-engine
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Update ssao.frag

Browse source 
samplePos.z bias  can remove banding
This commit is contained in:
binary 2019-11-25 10:13:19 +08:00 • committed by GitHub
parent 144b58a253
commit 364c4695a9
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
1 changed files with 4 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

6
data/shaders/ssao/ssao.frag
View file

@ -40,6 +40,8 @@ void main()
// Calculate occlusion value
float occlusion = 0.0f;
// remove banding
float bais = 0.01f;
for(int i = 0; i < SSAO_KERNEL_SIZE; i++)
{
vec3 samplePos = TBN * uboSSAOKernel.samples[i].xyz;
@ -57,9 +59,9 @@ void main()
#ifdef RANGE_CHECK
// Range check
float rangeCheck = smoothstep(0.0f, 1.0f, SSAO_RADIUS / abs(fragPos.z - sampleDepth));
occlusion += (sampleDepth >= samplePos.z ? 1.0f : 0.0f) * rangeCheck;
occlusion += (sampleDepth >= samplePos.z + bais ? 1.0f : 0.0f) * rangeCheck;
#else
occlusion += (sampleDepth >= samplePos.z ? 1.0f : 0.0f);
occlusion += (sampleDepth >= samplePos.z + bais ? 1.0f : 0.0f);
#endif
}
occlusion = 1.0 - (occlusion / float(SSAO_KERNEL_SIZE));