clara/bluenoise-raytracer
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

cleanup and refactoring

Browse source
This commit is contained in:
CDaut 2024-05-25 11:53:25 +02:00
parent 2302158928
commit 76f6bf62a4
Signed by: clara
GPG key ID: 223391B52FAD4463
1285 changed files with 757994 additions and 8 deletions
Download patch file Download diff file Expand all files Collapse all files

99
ray_tracing_gltf/shaders/pathtrace.rgen
View file

@ -1,99 +0,0 @@
/*
* Copyright (c) 2019-2021, NVIDIA CORPORATION. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* SPDX-FileCopyrightText: Copyright (c) 2019-2021 NVIDIA CORPORATION
* SPDX-License-Identifier: Apache-2.0
*/
#version 460
#extension GL_EXT_ray_tracing : require
#extension GL_GOOGLE_include_directive : enable
#extension GL_ARB_shader_clock : enable
#extension GL_EXT_shader_explicit_arithmetic_types_int64 : require
#include "raycommon.glsl"
#include "sampling.glsl"
#include "host_device.h"
// clang-format off
layout(location = 0) rayPayloadEXT hitPayload prd;
layout(set = 0, binding = 0) uniform accelerationStructureEXT topLevelAS;
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; };
// clang-format on
void main()
{
// Initialize the random number
uint seed = tea(gl_LaunchIDEXT.y * gl_LaunchSizeEXT.x + gl_LaunchIDEXT.x, int(clockARB()));
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;
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);
uint rayFlags = gl_RayFlagsOpaqueEXT;
float tMin = 0.001;
float tMax = 10000.0;
prd.hitValue = vec3(0);
prd.seed = seed;
prd.depth = 0;
prd.rayOrigin = origin.xyz;
prd.rayDirection = direction.xyz;
prd.weight = vec3(0);
vec3 curWeight = vec3(1);
vec3 hitValue = vec3(0);
for(; prd.depth < 100; prd.depth++)
{
traceRayEXT(topLevelAS, // acceleration structure
rayFlags, // rayFlags
0xFF, // cullMask
0, // sbtRecordOffset
0, // sbtRecordStride
0, // missIndex
prd.rayOrigin, // ray origin
tMin, // ray min range
prd.rayDirection, // ray direction
tMax, // ray max range
0 // payload (location = 0)
);
hitValue += prd.hitValue * curWeight;
curWeight *= prd.weight;
}
// Do accumulation over time
if(pcRay.frame > 0)
{
float a = 1.0f / float(pcRay.frame + 1);
vec3 old_color = imageLoad(image, ivec2(gl_LaunchIDEXT.xy)).xyz;
imageStore(image, ivec2(gl_LaunchIDEXT.xy), vec4(mix(old_color, hitValue, a), 1.f));
}
else
{
// First frame, replace the value in the buffer
imageStore(image, ivec2(gl_LaunchIDEXT.xy), vec4(hitValue, 1.f));
}
}