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Stabilize Vulkan shadow pipeline diagnostics and compatibility path

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- Fix shadow depth image layout transitions by tracking per-frame old/new layouts.
- Update receiver shadow projection to Vulkan clip-depth convention.
- Test inverted shadow compare op path (GREATER_OR_EQUAL).
- Switch shadow compare samplers to NEAREST filtering for broader Vulkan compatibility.
- Expand shadow caster coverage by disabling caster cull filtering in WMO/M2/Character shadow pipelines.
- Keep light-space matrix path on stable character-centered framing.
This commit is contained in:
Kelsi 2026-02-22 10:23:20 -08:00
parent 2c5e0dd313
commit 67e63653a4
10 changed files with 55 additions and 32 deletions
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9
assets/shaders/character.frag.glsl
View file

@ -63,9 +63,12 @@ void main() {
float shadow = 1.0;
if (shadowParams.x > 0.5) {
vec4 lsPos = lightSpaceMatrix * vec4(FragPos, 1.0);
vec3 proj = lsPos.xyz / lsPos.w * 0.5 + 0.5;
if (proj.z <= 1.0) {
float bias = max(0.005 * (1.0 - dot(norm, ldir)), 0.001);
vec3 proj = lsPos.xyz / lsPos.w;
proj.xy = proj.xy * 0.5 + 0.5;
if (proj.x >= 0.0 && proj.x <= 1.0 &&
proj.y >= 0.0 && proj.y <= 1.0 &&
proj.z >= 0.0 && proj.z <= 1.0) {
float bias = max(0.0005 * (1.0 - dot(norm, ldir)), 0.00005);
shadow = texture(uShadowMap, vec3(proj.xy, proj.z - bias));
}
shadow = mix(1.0, shadow, shadowParams.y);

9
assets/shaders/m2.frag.glsl
View file

@ -86,9 +86,12 @@ void main() {
float shadow = 1.0;
if (shadowParams.x > 0.5) {
vec4 lsPos = lightSpaceMatrix * vec4(FragPos, 1.0);
vec3 proj = lsPos.xyz / lsPos.w * 0.5 + 0.5;
if (proj.z <= 1.0) {
float bias = max(0.005 * (1.0 - abs(dot(norm, ldir))), 0.001);
vec3 proj = lsPos.xyz / lsPos.w;
proj.xy = proj.xy * 0.5 + 0.5;
if (proj.x >= 0.0 && proj.x <= 1.0 &&
proj.y >= 0.0 && proj.y <= 1.0 &&
proj.z >= 0.0 && proj.z <= 1.0) {
float bias = max(0.0005 * (1.0 - abs(dot(norm, ldir))), 0.00005);
shadow = texture(uShadowMap, vec3(proj.xy, proj.z - bias));
}
shadow = mix(1.0, shadow, shadowParams.y);

2
assets/shaders/terrain.frag.glsl
View file

@ -84,7 +84,7 @@ void main() {
vec3 proj = lsPos.xyz / lsPos.w;
proj.xy = proj.xy * 0.5 + 0.5;
if (proj.x >= 0.0 && proj.x <= 1.0 && proj.y >= 0.0 && proj.y <= 1.0 && proj.z <= 1.0) {
float bias = 0.002;
float bias = 0.0002;
shadow = texture(uShadowMap, vec3(proj.xy, proj.z - bias));
shadow = mix(1.0, shadow, shadowParams.y);
}

9
assets/shaders/wmo.frag.glsl
View file

@ -57,9 +57,12 @@ void main() {
float shadow = 1.0;
if (shadowParams.x > 0.5) {
vec4 lsPos = lightSpaceMatrix * vec4(FragPos, 1.0);
vec3 proj = lsPos.xyz / lsPos.w * 0.5 + 0.5;
if (proj.z <= 1.0) {
float bias = max(0.005 * (1.0 - dot(norm, ldir)), 0.001);
vec3 proj = lsPos.xyz / lsPos.w;
proj.xy = proj.xy * 0.5 + 0.5;
if (proj.x >= 0.0 && proj.x <= 1.0 &&
proj.y >= 0.0 && proj.y <= 1.0 &&
proj.z >= 0.0 && proj.z <= 1.0) {
float bias = max(0.0005 * (1.0 - dot(norm, ldir)), 0.00005);
shadow = texture(uShadowMap, vec3(proj.xy, proj.z - bias));
}
shadow = mix(1.0, shadow, shadowParams.y);