Mirrors/overte
3
0
Fork 0
mirror of https://github.com/overte-org/overte.git synced 2025-04-18 20:56:41 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 2

proper blend normalization from article

Browse source
This commit is contained in:
HifiExperiments 2025-04-07 23:45:51 -07:00
parent 336181a147
commit aed999512e
1 changed files with 16 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

22
libraries/graphics/src/graphics/MaterialTextures.slh
View file

@ -238,6 +238,11 @@ float fetchScatteringMap(vec2 uv) {
vec3 inPosition = (<$positionMS$> - vec3(0.5)) / <$triplanarScale$>.xyz;
vec3 normalMS = normalize(cross(dFdy(<$positionMS$>.xyz), dFdx(<$positionMS$>.xyz)));
// From https://bgolus.medium.com/normal-mapping-for-a-triplanar-shader-10bf39dca05a
vec3 blend = abs(normalMS.xyz);
blend = max(blend - 0.2, vec3(0.0));
blend /= dot(blend, vec3(1.0));
TexMapArray texMapArray = getTexMapArray();
vec2 uvXY = vec2(-inPosition.x, -inPosition.y);
<$evalTexMapArrayTexcoord0(texMapArray, uvXY, _positionWS, uvXY)$>
@ -267,7 +272,7 @@ float fetchScatteringMap(vec2 uv) {
{
<$fetchMaterialTexturesCoord0($matKey$, uvXY, $albedo$, $roughness$, $normal$, $metallic$, $emissive$, $scattering$)$>
float magnitude = abs(normalMS.z);
float magnitude = blend.z;
<@if albedo@>
<$albedo$>Triplanar += magnitude * <$albedo$>;
<@endif@>
@ -290,7 +295,7 @@ float fetchScatteringMap(vec2 uv) {
{
<$fetchMaterialTexturesCoord0($matKey$, uvXZ, $albedo$, $roughness$, $normal$, $metallic$, $emissive$, $scattering$)$>
float magnitude = abs(normalMS.y);
float magnitude = blend.y;
<@if albedo@>
<$albedo$>Triplanar += magnitude * <$albedo$>;
<@endif@>
@ -313,7 +318,7 @@ float fetchScatteringMap(vec2 uv) {
{
<$fetchMaterialTexturesCoord0($matKey$, uvYZ, $albedo$, $roughness$, $normal$, $metallic$, $emissive$, $scattering$)$>
float magnitude = abs(normalMS.x);
float magnitude = blend.x;
<@if albedo@>
<$albedo$>Triplanar += magnitude * <$albedo$>;
<@endif@>
@ -581,6 +586,11 @@ float fetchUVAnimationMaskMap(vec2 uv) {
vec3 inPosition = (<$positionMS$> - vec3(0.5)) / <$triplanarScale$>.xyz;
vec3 normalMS = normalize(cross(dFdy(<$positionMS$>.xyz), dFdx(<$positionMS$>.xyz)));
// From https://bgolus.medium.com/normal-mapping-for-a-triplanar-shader-10bf39dca05a
vec3 blend = abs(normalMS.xyz);
blend = max(blend - 0.2, vec3(0.0));
blend /= dot(blend, vec3(1.0));
TexMapArray texMapArray = getTexMapArray();
vec2 uvXY = vec2(-inPosition.x, -inPosition.y);
<$evalTexMapArrayTexcoord0(texMapArray, uvXY, _positionWS, uvXY)$>
@ -610,7 +620,7 @@ float fetchUVAnimationMaskMap(vec2 uv) {
{
<$fetchMToonMaterialTexturesCoord0($matKey$, uvXY, $albedo$, $normal$, $shade$, $emissive$, $shadingShift$, $rim$, $uvScrollSpeed$, $time$)$>
float magnitude = abs(normalMS.z);
float magnitude = blend.z;
<@if albedo@>
<$albedo$>Triplanar += magnitude * <$albedo$>;
<@endif@>
@ -633,7 +643,7 @@ float fetchUVAnimationMaskMap(vec2 uv) {
{
<$fetchMToonMaterialTexturesCoord0($matKey$, uvXZ, $albedo$, $normal$, $shade$, $emissive$, $shadingShift$, $rim$, $uvScrollSpeed$, $time$)$>
float magnitude = abs(normalMS.y);
float magnitude = blend.y;
<@if albedo@>
<$albedo$>Triplanar += magnitude * <$albedo$>;
<@endif@>
@ -656,7 +666,7 @@ float fetchUVAnimationMaskMap(vec2 uv) {
{
<$fetchMToonMaterialTexturesCoord0($matKey$, uvYZ, $albedo$, $normal$, $shade$, $emissive$, $shadingShift$, $rim$, $uvScrollSpeed$, $time$)$>
float magnitude = abs(normalMS.x);
float magnitude = blend.x;
<@if albedo@>
<$albedo$>Triplanar += magnitude * <$albedo$>;
<@endif@>