forked from bartvdbraak/blender
7e61e59725
This change allows the user to select a renderpass in the 3d viewport. Added support for external renderers to extend the `View3DShading` struct. This way Blender doesn't need to know the features an external render engine wants to support. Note that the View3DShading is also available in the scene->display.shading; although this is supported, it does not make sense for render engines to put something here as it is really scene/workbench related. Currently cycles assumes that it always needs to calculate the combined pass; it ignores the `pass_flag` in KernelFilm. We could optimize this but that was not in scope of this change Reviewed By: brecht Differential Revision: https://developer.blender.org/D5689
150 lines
5.3 KiB
C
150 lines
5.3 KiB
C
/*
|
|
* Copyright 2011-2013 Blender Foundation
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
CCL_NAMESPACE_BEGIN
|
|
|
|
ccl_device float4 film_get_pass_result(KernelGlobals *kg,
|
|
ccl_global float *buffer,
|
|
float sample_scale,
|
|
int index,
|
|
bool use_display_sample_scale)
|
|
{
|
|
float4 pass_result;
|
|
|
|
int display_pass_stride = kernel_data.film.display_pass_stride;
|
|
int display_pass_components = kernel_data.film.display_pass_components;
|
|
|
|
if (display_pass_components == 4) {
|
|
ccl_global float4 *in = (ccl_global float4 *)(buffer + display_pass_stride +
|
|
index * kernel_data.film.pass_stride);
|
|
float alpha = use_display_sample_scale ?
|
|
(kernel_data.film.use_display_pass_alpha ? in->w : 1.0f / sample_scale) :
|
|
1.0f;
|
|
|
|
pass_result = make_float4(in->x, in->y, in->z, alpha);
|
|
|
|
int display_divide_pass_stride = kernel_data.film.display_divide_pass_stride;
|
|
if (display_divide_pass_stride != -1) {
|
|
ccl_global float4 *divide_in = (ccl_global float4 *)(buffer + display_divide_pass_stride +
|
|
index * kernel_data.film.pass_stride);
|
|
if (divide_in->x != 0.0f) {
|
|
pass_result.x /= divide_in->x;
|
|
}
|
|
if (divide_in->y != 0.0f) {
|
|
pass_result.y /= divide_in->y;
|
|
}
|
|
if (divide_in->z != 0.0f) {
|
|
pass_result.z /= divide_in->z;
|
|
}
|
|
}
|
|
|
|
if (kernel_data.film.use_display_exposure) {
|
|
float exposure = kernel_data.film.exposure;
|
|
pass_result *= make_float4(exposure, exposure, exposure, alpha);
|
|
}
|
|
}
|
|
else if (display_pass_components == 1) {
|
|
ccl_global float *in = (ccl_global float *)(buffer + display_pass_stride +
|
|
index * kernel_data.film.pass_stride);
|
|
pass_result = make_float4(*in, *in, *in, 1.0f / sample_scale);
|
|
}
|
|
|
|
return pass_result;
|
|
}
|
|
|
|
ccl_device float4 film_map(KernelGlobals *kg, float4 rgba_in, float scale)
|
|
{
|
|
float4 result;
|
|
|
|
/* conversion to srgb */
|
|
result.x = color_linear_to_srgb(rgba_in.x);
|
|
result.y = color_linear_to_srgb(rgba_in.y);
|
|
result.z = color_linear_to_srgb(rgba_in.z);
|
|
|
|
/* clamp since alpha might be > 1.0 due to russian roulette */
|
|
result.w = saturate(rgba_in.w);
|
|
|
|
return result;
|
|
}
|
|
|
|
ccl_device uchar4 film_float_to_byte(float4 color)
|
|
{
|
|
uchar4 result;
|
|
|
|
/* simple float to byte conversion */
|
|
result.x = (uchar)(saturate(color.x) * 255.0f);
|
|
result.y = (uchar)(saturate(color.y) * 255.0f);
|
|
result.z = (uchar)(saturate(color.z) * 255.0f);
|
|
result.w = (uchar)(saturate(color.w) * 255.0f);
|
|
|
|
return result;
|
|
}
|
|
|
|
ccl_device void kernel_film_convert_to_byte(KernelGlobals *kg,
|
|
ccl_global uchar4 *rgba,
|
|
ccl_global float *buffer,
|
|
float sample_scale,
|
|
int x,
|
|
int y,
|
|
int offset,
|
|
int stride)
|
|
{
|
|
/* buffer offset */
|
|
int index = offset + x + y * stride;
|
|
|
|
bool use_display_sample_scale = (kernel_data.film.display_divide_pass_stride == -1);
|
|
float4 rgba_in = film_get_pass_result(kg, buffer, sample_scale, index, use_display_sample_scale);
|
|
|
|
rgba += index;
|
|
|
|
/* map colors */
|
|
if (use_display_sample_scale) {
|
|
float4 float_result = film_map(kg, rgba_in, sample_scale);
|
|
uchar4 byte_result = film_float_to_byte(float_result);
|
|
*rgba = byte_result;
|
|
}
|
|
else {
|
|
float4 float_result = film_map(kg, rgba_in, 1.0);
|
|
uchar4 byte_result = film_float_to_byte(float_result);
|
|
*rgba = byte_result;
|
|
}
|
|
}
|
|
|
|
ccl_device void kernel_film_convert_to_half_float(KernelGlobals *kg,
|
|
ccl_global uchar4 *rgba,
|
|
ccl_global float *buffer,
|
|
float sample_scale,
|
|
int x,
|
|
int y,
|
|
int offset,
|
|
int stride)
|
|
{
|
|
/* buffer offset */
|
|
int index = offset + x + y * stride;
|
|
bool use_display_sample_scale = (kernel_data.film.display_divide_pass_stride == -1);
|
|
float4 rgba_in = film_get_pass_result(kg, buffer, sample_scale, index, use_display_sample_scale);
|
|
|
|
ccl_global half *out = (ccl_global half *)rgba + index * 4;
|
|
if (use_display_sample_scale) {
|
|
float4_store_half(out, rgba_in, sample_scale);
|
|
}
|
|
else {
|
|
float4_store_half(out, rgba_in, 1.0f);
|
|
}
|
|
}
|
|
|
|
CCL_NAMESPACE_END
|