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f2394a431e
This is an internal change preparing for the texture cache. Only implemented for surfaces, and currently supports the following nodes: - Geometry - Tangent - Mapping - Attribute - Texture Coordinate - Environment Texture - Image Texture - Vector math - UV Map - Combine/Separate XYZ - Bump This has some impact on GPU rendering performance. Various changes were made to optimize this, but rendering can still be a few % slower on some GPUs. Some of the optimizations done: * Use different node types enum for derivative nodes, consecutive to ensure the jump table works. * Template various SVM derivative nodes to separate them from the non-derivative case, and avoid using dual types in those implementations. * Use template on return type for stack_store and stack_load to make the above easier to implement. * Use template on return type of primitive attribute reading to make derivative and non-derivative variations. * Unify derivative and bump dx/dy nodes. Now it's a single derivative node that handles both cases. * Derivative nodes are disabled in volume shaders for now. * Tweak inlining on a few functions. Co-authored-by: Brecht Van Lommel <brecht@blender.org> Pull Request: https://projects.blender.org/blender/blender/pulls/155706
38 lines
1.2 KiB
C++
38 lines
1.2 KiB
C++
/* SPDX-FileCopyrightText: 2011-2022 Blender Foundation
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*
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* SPDX-License-Identifier: Apache-2.0 */
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#pragma once
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#include "kernel/svm/types.h"
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#include "util/math.h"
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#include "util/transform.h"
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#include "util/types.h"
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CCL_NAMESPACE_BEGIN
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template<class Float3Type>
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ccl_device Float3Type svm_mapping(NodeMappingType type,
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const Float3Type vector,
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const float3 location,
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const float3 rotation,
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const float3 scale)
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{
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const Transform rotationTransform = euler_to_transform(rotation);
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switch (type) {
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case NODE_MAPPING_TYPE_POINT:
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return transform_direction(&rotationTransform, (vector * scale)) + location;
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case NODE_MAPPING_TYPE_TEXTURE:
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return safe_divide(transform_direction_transposed(&rotationTransform, (vector - location)),
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scale);
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case NODE_MAPPING_TYPE_VECTOR:
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return transform_direction(&rotationTransform, (vector * scale));
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case NODE_MAPPING_TYPE_NORMAL:
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return safe_normalize(transform_direction(&rotationTransform, safe_divide(vector, scale)));
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default:
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return Float3Type(zero_float3());
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}
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}
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CCL_NAMESPACE_END
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