74 lines
2.3 KiB
GLSL
74 lines
2.3 KiB
GLSL
/*
|
|
Copyright (c) 2024 Turánszki János
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
of this software and associated documentation files (the "Software"), to deal
|
|
in the Software without restriction, including without limitation the rights
|
|
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
copies of the Software, and to permit persons to whom the Software is
|
|
furnished to do so, subject to the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be included in
|
|
all copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
THE SOFTWARE.
|
|
*/
|
|
|
|
#version 450
|
|
|
|
layout (local_size_x = 8, local_size_y = 8, local_size_z = 1) in;
|
|
|
|
#include "compiled.inc"
|
|
#include "std/math.glsl"
|
|
#include "std/gbuffer.glsl"
|
|
#include "std/imageatomic.glsl"
|
|
#include "std/conetrace.glsl"
|
|
|
|
uniform sampler3D voxels;
|
|
uniform sampler2D gbufferD;
|
|
uniform sampler2D gbuffer0;
|
|
uniform layout(rgba8) image2D voxels_diffuse;
|
|
|
|
uniform float clipmaps[voxelgiClipmapCount * 10];
|
|
uniform mat4 InvVP;
|
|
uniform vec2 cameraProj;
|
|
uniform vec3 eye;
|
|
uniform vec3 eyeLook;
|
|
uniform vec2 postprocess_resolution;
|
|
|
|
void main() {
|
|
const vec2 pixel = gl_GlobalInvocationID.xy;
|
|
vec2 uv = (pixel + 0.5) / postprocess_resolution;
|
|
#ifdef _InvY
|
|
uv.y = 1.0 - uv.y
|
|
#endif
|
|
|
|
float depth = textureLod(gbufferD, uv, 0.0).r * 2.0 - 1.0;
|
|
if (depth == 0) return;
|
|
|
|
float x = uv.x * 2 - 1;
|
|
float y = uv.y * 2 - 1;
|
|
vec4 v = vec4(x, y, 1.0, 1.0);
|
|
v = vec4(InvVP * v);
|
|
v.xyz /= v.w;
|
|
vec3 viewRay = v.xyz - eye;
|
|
|
|
vec3 P = getPos(eye, eyeLook, normalize(viewRay), depth, cameraProj);
|
|
|
|
vec4 g0 = textureLod(gbuffer0, uv, 0.0);
|
|
vec3 n;
|
|
n.z = 1.0 - abs(g0.x) - abs(g0.y);
|
|
n.xy = n.z >= 0.0 ? g0.xy : octahedronWrap(g0.xy);
|
|
n = normalize(n);
|
|
|
|
vec4 color = traceDiffuse(P, n, voxels, clipmaps);
|
|
|
|
imageStore(voxels_diffuse, ivec2(pixel), color);
|
|
}
|