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Support logarithmic depth buffer #199

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Merged
dmarcos merged 3 commits into from
Oct 23, 2025
Merged

Support logarithmic depth buffer #199

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56eba9b
Support `logarithmicDepthBuffer`
Philipp-M Oct 22, 2025
75229f0
Use `#include <logdepthbuf_pars_vertex>`
Philipp-M Oct 23, 2025
a2bf8a0
use includes everywhere if possible or reasonable
Philipp-M Oct 23, 2025
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2 changes: 2 additions & 0 deletions src/shaders/splatFragment.glsl
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@ precision highp float;
precision highp int;

#include <splatDefines>
#include <logdepthbuf_pars_fragment>

uniform float near;
uniform float far;
Expand Down Expand Up @@ -93,4 +94,5 @@ void main() {
fragColor = rgba;
#endif
}
#include <logdepthbuf_fragment>
}
8 changes: 8 additions & 0 deletions src/shaders/splatVertex.glsl
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Expand Up @@ -4,6 +4,7 @@ precision highp int;
precision highp usampler2DArray;

#include <splatDefines>
#include <logdepthbuf_pars_vertex>

attribute uint splatIndex;

Expand Down Expand Up @@ -35,6 +36,12 @@ uniform float focalAdjustment;
uniform usampler2DArray packedSplats;
uniform vec4 rgbMinMaxLnScaleMinMax;

#ifdef USE_LOGDEPTHBUF
bool isPerspectiveMatrix( mat4 m ) {
return m[ 2 ][ 3 ] == - 1.0;
}
#endif

void main() {
// Default to outside the frustum so it's discarded if we return early
gl_Position = vec4(0.0, 0.0, 2.0, 1.0);
Expand Down Expand Up @@ -215,4 +222,5 @@ void main() {
vSplatUv = position.xy * maxStdDev;
vNdc = ndc;
gl_Position = vec4(ndc.xy * clipCenter.w, clipCenter.zw);
#include <logdepthbuf_vertex>
}