Cycles: Optionally output luminance from the shader evaluation kernel

This makes it possible to move some parts of evaluation from host to the device
and hopefully reduce memory usage by avoid having full RGBA buffer on the host.

Reviewers: juicyfruit, lukasstockner97, brecht

Reviewed By: lukasstockner97, brecht

Differential Revision: https://developer.blender.org/D1702
This commit is contained in:
Sergey Sharybin
2015-12-30 19:04:01 +05:00
parent c8a551bf13
commit 3918c8b9a5
13 changed files with 91 additions and 24 deletions

View File

@@ -453,7 +453,13 @@ ccl_device void kernel_bake_evaluate(KernelGlobals *kg, ccl_global uint4 *input,
output[i] += make_float4(out.x, out.y, out.z, 1.0f) * output_fac;
}
ccl_device void kernel_shader_evaluate(KernelGlobals *kg, ccl_global uint4 *input, ccl_global float4 *output, ShaderEvalType type, int i, int sample)
ccl_device void kernel_shader_evaluate(KernelGlobals *kg,
ccl_global uint4 *input,
ccl_global float4 *output,
ccl_global float *output_luma,
ShaderEvalType type,
int i,
int sample)
{
ShaderData sd;
uint4 in = input[i];
@@ -500,10 +506,22 @@ ccl_device void kernel_shader_evaluate(KernelGlobals *kg, ccl_global uint4 *inpu
}
/* write output */
if(sample == 0)
output[i] = make_float4(out.x, out.y, out.z, 0.0f);
else
output[i] += make_float4(out.x, out.y, out.z, 0.0f);
if(sample == 0) {
if(output != NULL) {
output[i] = make_float4(out.x, out.y, out.z, 0.0f);
}
if(output_luma != NULL) {
output_luma[i] = average(out);
}
}
else {
if(output != NULL) {
output[i] += make_float4(out.x, out.y, out.z, 0.0f);
}
if(output_luma != NULL) {
output_luma[i] += average(out);
}
}
}
CCL_NAMESPACE_END