1c0f374ec3
The `object_to_world` and `world_to_object` matrices are set during depsgraph evaluation, calculated from the object's animated location, rotation, scale, parenting, and constraints. It's confusing and unnecessary to store them with the original data in DNA. This commit moves them to `ObjectRuntime` and moves the matrices to use the C++ `float4x4` type, giving the potential for simplified code using the C++ abstractions. The matrices are accessible with functions on `Object` directly since they are used so commonly. Though for write access, directly using the runtime struct is necessary. The inverse `world_to_object` matrix is often calculated before it's used, even though it's calculated as part of depsgraph evaluation. Long term we might not want to store this in `ObjectRuntime` at all, and just calculate it on demand. Or at least we should remove the redundant calculations. That should be done separately though. Pull Request: https://projects.blender.org/blender/blender/pulls/118210
145 lines
4.4 KiB
C
145 lines
4.4 KiB
C
/* SPDX-FileCopyrightText: 2010 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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/** \file
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* \ingroup render
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*/
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#pragma once
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#include "RE_pipeline.h"
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struct Depsgraph;
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struct ImBuf;
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struct Mesh;
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struct Render;
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct BakeImage {
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struct Image *image;
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int tile_number;
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float uv_offset[2];
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int width;
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int height;
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size_t offset;
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/* For associating render result layer with image. */
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char render_layer_name[RE_MAXNAME];
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} BakeImage;
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typedef struct BakeTargets {
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/* All images of the object. */
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BakeImage *images;
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int images_num;
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/* Lookup table from Material number to BakeImage. */
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struct Image **material_to_image;
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int materials_num;
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/* Pixel buffer to bake to. */
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float *result;
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int pixels_num;
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int channels_num;
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/* Baking to non-color data image. */
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bool is_noncolor;
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} BakeTargets;
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typedef struct BakePixel {
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int primitive_id, object_id;
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int seed;
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float uv[2];
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float du_dx, du_dy;
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float dv_dx, dv_dy;
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} BakePixel;
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typedef struct BakeHighPolyData {
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struct Object *ob;
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struct Object *ob_eval;
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struct Mesh *mesh;
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bool is_flip_object;
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float obmat[4][4];
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float imat[4][4];
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} BakeHighPolyData;
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/* `external_engine.cc` */
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bool RE_bake_has_engine(const struct Render *re);
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bool RE_bake_engine(struct Render *re,
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struct Depsgraph *depsgraph,
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struct Object *object,
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int object_id,
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const BakePixel pixel_array[],
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const BakeTargets *targets,
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eScenePassType pass_type,
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int pass_filter,
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float result[]);
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/* `bake.cc` */
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int RE_pass_depth(eScenePassType pass_type);
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bool RE_bake_pixels_populate_from_objects(struct Mesh *me_low,
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BakePixel pixel_array_from[],
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BakePixel pixel_array_to[],
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BakeHighPolyData highpoly[],
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int tot_highpoly,
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size_t pixels_num,
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bool is_custom_cage,
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float cage_extrusion,
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float max_ray_distance,
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const float mat_low[4][4],
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const float mat_cage[4][4],
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struct Mesh *me_cage);
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void RE_bake_pixels_populate(struct Mesh *mesh,
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struct BakePixel *pixel_array,
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size_t pixels_num,
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const struct BakeTargets *targets,
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const char *uv_layer);
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void RE_bake_mask_fill(const BakePixel pixel_array[], size_t pixels_num, char *mask);
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void RE_bake_margin(struct ImBuf *ibuf,
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char *mask,
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int margin,
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char margin_type,
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const Mesh *mesh,
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char const *uv_layer,
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const float uv_offset[2]);
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void RE_bake_normal_world_to_object(const BakePixel pixel_array[],
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size_t pixels_num,
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int depth,
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float result[],
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struct Object *ob,
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const eBakeNormalSwizzle normal_swizzle[3]);
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/**
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* This function converts an object space normal map
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* to a tangent space normal map for a given low poly mesh.
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*/
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void RE_bake_normal_world_to_tangent(const BakePixel pixel_array[],
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size_t pixels_num,
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int depth,
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float result[],
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struct Mesh *mesh,
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const eBakeNormalSwizzle normal_swizzle[3],
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const float mat[4][4]);
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void RE_bake_normal_world_to_world(const BakePixel pixel_array[],
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size_t pixels_num,
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int depth,
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float result[],
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const eBakeNormalSwizzle normal_swizzle[3]);
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void RE_bake_ibuf_clear(struct Image *image, bool is_tangent);
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#ifdef __cplusplus
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}
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#endif
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