fd25e883e2
Remove prefix of filenames that is the same as the folder name. This used to help when #includes were using individual files, but now they are always relative to the cycles root directory and so the prefixes are redundant. For patches and branches, git merge and rebase should be able to detect the renames and move over code to the right file.
92 lines
3.4 KiB
C
92 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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#pragma once
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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(KernelGlobals kg,
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ccl_private ShaderData *sd,
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ccl_private 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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