65ad36f5fd
This is a new implementation of the draw manager using modern rendering practices and GPU driven culling. This only ports features that are not considered deprecated or to be removed. The old DRW API is kept working along side this new one, and does not interfeer with it. However this needed some more hacking inside the draw_view_lib.glsl. At least the create info are well separated. The reviewer might start by looking at `draw_pass_test.cc` to see the API in usage. Important files are `draw_pass.hh`, `draw_command.hh`, `draw_command_shared.hh`. In a nutshell (for a developper used to old DRW API): - `DRWShadingGroups` are replaced by `Pass<T>::Sub`. - Contrary to DRWShadingGroups, all commands recorded inside a pass or sub-pass (even binds / push_constant / uniforms) will be executed in order. - All memory is managed per object (except for Sub-Pass which are managed by their parent pass) and not from draw manager pools. So passes "can" potentially be recorded once and submitted multiple time (but this is not really encouraged for now). The only implicit link is between resource lifetime and `ResourceHandles` - Sub passes can be any level deep. - IMPORTANT: All state propagate from sub pass to subpass. There is no state stack concept anymore. Ensure the correct render state is set before drawing anything using `Pass::state_set()`. - The drawcalls now needs a `ResourceHandle` instead of an `Object *`. This is to remove any implicit dependency between `Pass` and `Manager`. This was a huge problem in old implementation since the manager did not know what to pull from the object. Now it is explicitly requested by the engine. - The pases need to be submitted to a `draw::Manager` instance which can be retrieved using `DRW_manager_get()` (for now). Internally: - All object data are stored in contiguous storage buffers. Removing a lot of complexity in the pass submission. - Draw calls are sorted and visibility tested on GPU. Making more modern culling and better instancing usage possible in the future. - Unit Tests have been added for regression testing and avoid most API breakage. - `draw::View` now contains culling data for all objects in the scene allowing caching for multiple views. - Bounding box and sphere final setup is moved to GPU. - Some global resources locations have been hardcoded to reduce complexity. What is missing: - ~~Workaround for lack of gl_BaseInstanceARB.~~ Done - ~~Object Uniform Attributes.~~ Done (Not in this patch) - Workaround for hardware supporting a maximum of 8 SSBO. Reviewed By: jbakker Differential Revision: https://developer.blender.org/D15817
28 lines
687 B
C++
28 lines
687 B
C++
/* SPDX-License-Identifier: GPL-2.0-or-later
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* Copyright 2022 Blender Foundation.
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*/
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/** \file
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* \ingroup draw
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*
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* List of defines that are shared with the GPUShaderCreateInfos. We do this to avoid
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* dragging larger headers into the createInfo pipeline which would cause problems.
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*/
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#pragma once
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#define DRW_VIEW_UBO_SLOT 0
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#define DRW_RESOURCE_ID_SLOT 11
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#define DRW_OBJ_MAT_SLOT 10
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#define DRW_OBJ_INFOS_SLOT 9
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#define DRW_OBJ_ATTR_SLOT 8
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#define DRW_DEBUG_PRINT_SLOT 15
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#define DRW_DEBUG_DRAW_SLOT 14
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#define DRW_COMMAND_GROUP_SIZE 64
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#define DRW_FINALIZE_GROUP_SIZE 64
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/* Must be multiple of 32. Set to 32 for shader simplicity. */
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#define DRW_VISIBILITY_GROUP_SIZE 32
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