0803119725
This includes much improved GPU rendering performance, viewport interactivity, new shadow catcher, revamped sampling settings, subsurface scattering anisotropy, new GPU volume sampling, improved PMJ sampling pattern, and more. Some features have also been removed or changed, breaking backwards compatibility. Including the removal of the OpenCL backend, for which alternatives are under development. Release notes and code docs: https://wiki.blender.org/wiki/Reference/Release_Notes/3.0/Cycles https://wiki.blender.org/wiki/Source/Render/Cycles Credits: * Sergey Sharybin * Brecht Van Lommel * Patrick Mours (OptiX backend) * Christophe Hery (subsurface scattering anisotropy) * William Leeson (PMJ sampling pattern) * Alaska (various fixes and tweaks) * Thomas Dinges (various fixes) For the full commit history, see the cycles-x branch. This squashes together all the changes since intermediate changes would often fail building or tests. Ref T87839, T87837, T87836 Fixes T90734, T89353, T80267, T80267, T77185, T69800
90 lines
3.4 KiB
C
90 lines
3.4 KiB
C
/*
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* Copyright 2011-2013 Blender Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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CCL_NAMESPACE_BEGIN
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/* Map Range Node */
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ccl_device_inline float smootherstep(float edge0, float edge1, float x)
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{
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x = clamp(safe_divide((x - edge0), (edge1 - edge0)), 0.0f, 1.0f);
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return x * x * x * (x * (x * 6.0f - 15.0f) + 10.0f);
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}
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ccl_device_noinline int svm_node_map_range(const KernelGlobals *kg,
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ShaderData *sd,
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float *stack,
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uint value_stack_offset,
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uint parameters_stack_offsets,
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uint results_stack_offsets,
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int offset)
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{
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uint from_min_stack_offset, from_max_stack_offset, to_min_stack_offset, to_max_stack_offset;
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uint type_stack_offset, steps_stack_offset, result_stack_offset;
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svm_unpack_node_uchar4(parameters_stack_offsets,
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&from_min_stack_offset,
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&from_max_stack_offset,
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&to_min_stack_offset,
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&to_max_stack_offset);
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svm_unpack_node_uchar3(
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results_stack_offsets, &type_stack_offset, &steps_stack_offset, &result_stack_offset);
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uint4 defaults = read_node(kg, &offset);
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uint4 defaults2 = read_node(kg, &offset);
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float value = stack_load_float(stack, value_stack_offset);
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float from_min = stack_load_float_default(stack, from_min_stack_offset, defaults.x);
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float from_max = stack_load_float_default(stack, from_max_stack_offset, defaults.y);
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float to_min = stack_load_float_default(stack, to_min_stack_offset, defaults.z);
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float to_max = stack_load_float_default(stack, to_max_stack_offset, defaults.w);
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float steps = stack_load_float_default(stack, steps_stack_offset, defaults2.x);
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float result;
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if (from_max != from_min) {
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float factor = value;
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switch (type_stack_offset) {
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default:
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case NODE_MAP_RANGE_LINEAR:
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factor = (value - from_min) / (from_max - from_min);
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break;
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case NODE_MAP_RANGE_STEPPED: {
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factor = (value - from_min) / (from_max - from_min);
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factor = (steps > 0.0f) ? floorf(factor * (steps + 1.0f)) / steps : 0.0f;
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break;
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}
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case NODE_MAP_RANGE_SMOOTHSTEP: {
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factor = (from_min > from_max) ? 1.0f - smoothstep(from_max, from_min, factor) :
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smoothstep(from_min, from_max, factor);
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break;
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}
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case NODE_MAP_RANGE_SMOOTHERSTEP: {
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factor = (from_min > from_max) ? 1.0f - smootherstep(from_max, from_min, factor) :
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smootherstep(from_min, from_max, factor);
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break;
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}
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}
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result = to_min + factor * (to_max - to_min);
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}
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else {
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result = 0.0f;
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}
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stack_store_float(stack, result_stack_offset, result);
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return offset;
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}
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CCL_NAMESPACE_END
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