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This commit is contained in:
mcrcortex
2024-05-09 13:22:29 +10:00
parent 05e8145fa6
commit 7a6669fb7d
6 changed files with 40 additions and 23 deletions
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1
src/main/resources/assets/voxy/shaders/lod/gl46mesh/cull.frag
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@@ -1,5 +1,4 @@
#version 460 core
#extension GL_ARB_gpu_shader_int64 : enable
#define VISIBILITY_ACCESS writeonly
#import <voxy:lod/gl46mesh/bindings.glsl>
layout(early_fragment_tests) in;

6
src/main/resources/assets/voxy/shaders/lod/gl46mesh/meshletculler.comp
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@@ -35,8 +35,8 @@ bool testHiZ(PosHeader secPos, AABBHeader aabb) {
minBB = minBB*0.5+0.5;
maxBB = maxBB*0.5+0.5;
vec2 size = (maxBB.xy - minBB.xy) * vec2(screensize);
float miplevel = ceil(log2(max(size.x, size.y)));//NOTE: the /2 is cause the mipmaps dont include bottom level depth
vec2 size = (maxBB.xy - minBB.xy) * vec2(ivec2(screensize));
float miplevel = ceil(log2(max(max(size.x, size.y),1)));
float a = textureLod(hizSampler,minBB.xy,miplevel).r;
float b = textureLod(hizSampler,vec2(minBB.x,maxBB.y),miplevel).r;
@@ -63,7 +63,7 @@ void main() {
PosHeader pos = geometryPool[meshletId*MESHLET_SIZE];
AABBHeader aabb = geometryPool[meshletId*MESHLET_SIZE+1];
if (testHiZ(pos, aabb) || true) {//If didnt cull, insert it back into the stream
if (testHiZ(pos, aabb)) {//If didnt cull, insert it back into the stream
meshlets[atomicAdd(drawCmd.instanceCount, 1)+fullMeshletCount] = meshletId;
}
}

3
src/main/resources/assets/voxy/shaders/lod/gl46mesh/quads.vert
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@@ -1,5 +1,6 @@
#version 450
#extension GL_ARB_gpu_shader_int64 : enable
#extension GL_ARB_shader_draw_parameters : require
#import <voxy:lod/quad_format.glsl>
#import <voxy:lod/gl46mesh/bindings.glsl>
@@ -12,7 +13,7 @@ Quad quad;
bool setupMeshlet() {
gl_CullDistance[0] = 1;
//TODO: replace with vertexAttribute that has a divisor of 1
uint data = meshlets[gl_InstanceID];
uint data = meshlets[gl_InstanceID + gl_BaseInstanceARB];
if (data == uint(-1)) {//Came across a culled meshlet
gl_CullDistance[0] = -1;
//Since the primative is culled, dont need to do any more work or set any values as the primative is discarded