clara/bluenoise-raytracer
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random offsets in raygen

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This commit is contained in:
CDaut 2024-06-29 19:08:24 +02:00
parent 2bc40926b8
commit 74457d1a9c
Signed by: clara
GPG key ID: 223391B52FAD4463
5 changed files with 37 additions and 38 deletions
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50
raytracer/ray_tracing_gltf/shaders/raytrace.rgen
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@ -35,37 +35,37 @@ layout(set = 0, binding = 1, rgba32f) uniform image2D image;
layout(set = 1, binding = 0) uniform _GlobalUniforms { GlobalUniforms uni; };
layout(push_constant) uniform _PushConstantRay { PushConstantRay pcRay; };
layout(set = 1, binding = ePointsetTexture) uniform sampler2D pointset; // bluenoise pointset
layout(set = 1, binding = ePointsetTexture) uniform sampler2D pointset;// bluenoise pointset
// clang-format on
void main()
{
const vec2 pixelCenter = vec2(gl_LaunchIDEXT.xy) + vec2(0.5);
const vec2 inUV = pixelCenter / vec2(gl_LaunchSizeEXT.xy);
vec2 d = inUV * 2.0 - 1.0;
vec2 uv = vec2(float(gl_LaunchIDEXT.x) / float(gl_LaunchSizeEXT.x), float(gl_LaunchIDEXT.y) / float(gl_LaunchSizeEXT.y));
vec4 origin = uni.viewInverse * vec4(0, 0, 0, 1);
vec4 target = uni.projInverse * vec4(d.x, d.y, 1, 1);
vec4 direction = uni.viewInverse * vec4(normalize(target.xyz), 0);
const vec2 rayOriginInPix = vec2(gl_LaunchIDEXT.xy) + texture(pointset, uv).xy;
const vec2 inUV = rayOriginInPix / vec2(gl_LaunchSizeEXT.xy);
vec2 d = inUV * 2.0 - 1.0;
uint rayFlags = gl_RayFlagsOpaqueEXT;
float tMin = 0.001;
float tMax = 10000.0;
vec4 origin = uni.viewInverse * vec4(0, 0, 0, 1);
vec4 target = uni.projInverse * vec4(d.x, d.y, 1, 1);
vec4 direction = uni.viewInverse * vec4(normalize(target.xyz), 0);
traceRayEXT(topLevelAS, // acceleration structure
rayFlags, // rayFlags
0xFF, // cullMask
0, // sbtRecordOffset
0, // sbtRecordStride
0, // missIndex
origin.xyz, // ray origin
tMin, // ray min range
direction.xyz, // ray direction
tMax, // ray max range
0 // payload (location = 0)
);
uint rayFlags = gl_RayFlagsOpaqueEXT;
float tMin = 0.001;
float tMax = 10000.0;
//imageStore(image, ivec2(gl_LaunchIDEXT.xy), vec4(prd.hitValue, 1.0));
vec2 uv = vec2(float(gl_LaunchIDEXT.x) / float(gl_LaunchSizeEXT.x) - 0.5, float(gl_LaunchIDEXT.y) / float(gl_LaunchSizeEXT.y) - 0.5);
imageStore(image, ivec2(gl_LaunchIDEXT.xy), texture(pointset, uv));
traceRayEXT(topLevelAS, // acceleration structure
rayFlags, // rayFlags
0xFF, // cullMask
0, // sbtRecordOffset
0, // sbtRecordStride
0, // missIndex
origin.xyz, // ray origin
tMin, // ray min range
direction.xyz, // ray direction
tMax, // ray max range
0// payload (location = 0)
);
imageStore(image, ivec2(gl_LaunchIDEXT.xy), vec4(prd.hitValue, 1.0));
}