Files
test2/intern/cycles/kernel/device/optix/kernel_osl.cu
Weizhen Huang 2b0a1cae06 Cycles: Add an option to use ray marching for volume rendering
Null Scattering currently has performance and noise issues, and it will
take time to address them. For now add the previous Ray Marching back as
an option.

Co-authored-by: Brecht Van Lommel <brecht@blender.org>
Pull Request: https://projects.blender.org/blender/blender/pulls/146317
2025-09-26 12:14:45 +02:00

114 lines
4.7 KiB
Plaintext

/* SPDX-FileCopyrightText: 2011-2022 Blender Foundation
*
* SPDX-License-Identifier: Apache-2.0 */
#define WITH_OSL
/* Copy of the regular OptiX kernels with additional OSL support. */
#include "kernel/device/optix/kernel_shader_raytrace.cu"
#include "kernel/bake/bake.h"
#include "kernel/integrator/shade_background.h"
#include "kernel/integrator/shade_dedicated_light.h"
#include "kernel/integrator/shade_light.h"
#include "kernel/integrator/shade_shadow.h"
#include "kernel/integrator/shade_volume.h"
#include "kernel/device/gpu/work_stealing.h"
extern "C" __global__ void __raygen__kernel_optix_integrator_shade_background()
{
const int global_index = optixGetLaunchIndex().x;
const int path_index = (kernel_params.path_index_array) ?
kernel_params.path_index_array[global_index] :
global_index;
integrator_shade_background(nullptr, path_index, kernel_params.render_buffer);
}
extern "C" __global__ void __raygen__kernel_optix_integrator_shade_light()
{
const int global_index = optixGetLaunchIndex().x;
const int path_index = (kernel_params.path_index_array) ?
kernel_params.path_index_array[global_index] :
global_index;
integrator_shade_light(nullptr, path_index, kernel_params.render_buffer);
}
extern "C" __global__ void __raygen__kernel_optix_integrator_shade_surface()
{
const int global_index = optixGetLaunchIndex().x;
const int path_index = (kernel_params.path_index_array) ?
kernel_params.path_index_array[global_index] :
global_index;
integrator_shade_surface(nullptr, path_index, kernel_params.render_buffer);
}
extern "C" __global__ void __raygen__kernel_optix_integrator_shade_volume()
{
const int global_index = optixGetLaunchIndex().x;
const int path_index = (kernel_params.path_index_array) ?
kernel_params.path_index_array[global_index] :
global_index;
integrator_shade_volume(nullptr, path_index, kernel_params.render_buffer);
}
extern "C" __global__ void __raygen__kernel_optix_integrator_shade_volume_ray_marching()
{
const int global_index = optixGetLaunchIndex().x;
const int path_index = (kernel_params.path_index_array) ?
kernel_params.path_index_array[global_index] :
global_index;
integrator_shade_volume_ray_marching(nullptr, path_index, kernel_params.render_buffer);
}
extern "C" __global__ void __raygen__kernel_optix_integrator_shade_shadow()
{
const int global_index = optixGetLaunchIndex().x;
const int path_index = (kernel_params.path_index_array) ?
kernel_params.path_index_array[global_index] :
global_index;
integrator_shade_shadow(nullptr, path_index, kernel_params.render_buffer);
}
extern "C" __global__ void __raygen__kernel_optix_integrator_shade_dedicated_light()
{
const int global_index = optixGetLaunchIndex().x;
const int path_index = (kernel_params.path_index_array) ?
kernel_params.path_index_array[global_index] :
global_index;
integrator_shade_dedicated_light(nullptr, path_index, kernel_params.render_buffer);
}
extern "C" __global__ void __raygen__kernel_optix_shader_eval_displace()
{
KernelShaderEvalInput *const input = (KernelShaderEvalInput *)kernel_params.path_index_array;
float *const output = kernel_params.render_buffer;
const int global_index = kernel_params.offset + optixGetLaunchIndex().x;
kernel_displace_evaluate(nullptr, input, output, global_index);
}
extern "C" __global__ void __raygen__kernel_optix_shader_eval_background()
{
KernelShaderEvalInput *const input = (KernelShaderEvalInput *)kernel_params.path_index_array;
float *const output = kernel_params.render_buffer;
const int global_index = kernel_params.offset + optixGetLaunchIndex().x;
kernel_background_evaluate(nullptr, input, output, global_index);
}
extern "C" __global__ void __raygen__kernel_optix_shader_eval_curve_shadow_transparency()
{
KernelShaderEvalInput *const input = (KernelShaderEvalInput *)kernel_params.path_index_array;
float *const output = kernel_params.render_buffer;
const int global_index = kernel_params.offset + optixGetLaunchIndex().x;
kernel_curve_shadow_transparency_evaluate(nullptr, input, output, global_index);
}
extern "C" __global__ void __raygen__kernel_optix_shader_eval_volume_density()
{
KernelShaderEvalInput *const input = (KernelShaderEvalInput *)kernel_params.path_index_array;
float *const output = kernel_params.render_buffer;
const int global_index = kernel_params.offset + optixGetLaunchIndex().x;
kernel_volume_density_evaluate(nullptr, input, output, global_index);
}