forked from bartvdbraak/blender
42 lines
1.2 KiB
C
42 lines
1.2 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 void svm_node_camera(KernelGlobals *kg, ShaderData *sd, float *stack, uint out_vector, uint out_zdepth, uint out_distance)
|
|
{
|
|
float distance;
|
|
float zdepth;
|
|
float3 vector;
|
|
|
|
Transform tfm = kernel_data.cam.worldtocamera;
|
|
vector = transform_point(&tfm, sd->P);
|
|
zdepth = vector.z;
|
|
distance = len(vector);
|
|
|
|
if (stack_valid(out_vector))
|
|
stack_store_float3(stack, out_vector, normalize(vector));
|
|
|
|
if (stack_valid(out_zdepth))
|
|
stack_store_float(stack, out_zdepth, zdepth);
|
|
|
|
if (stack_valid(out_distance))
|
|
stack_store_float(stack, out_distance, distance);
|
|
}
|
|
|
|
CCL_NAMESPACE_END
|
|
|