80859a6cb2
This commit removes all EEVEE specific code from the `gpu_shader_material*.glsl` files. It defines a clear interface to evaluate the closure nodes leaving more flexibility to the render engine. Some of the long standing workaround are fixed: - bump mapping support is no longer duplicating a lot of node and is instead compiled into a function call. - bump rewiring to Normal socket is no longer needed as we now use a global `g_data.N` for that. Closure sampling with upstread weight eval is now supported if the engine needs it. This also makes all the material GLSL sources use `GPUSource` for better debugging experience. The `GPUFunction` parsing now happens in `GPUSource` creation. The whole `GPUCodegen` now uses the `ShaderCreateInfo` and is object type agnostic. Is has also been rewritten in C++. This patch changes a view behavior for EEVEE: - Mix shader node factor imput is now clamped. - Tangent Vector displacement behavior is now matching cycles. - The chosen BSDF used for SSR might change. - Hair shading may have very small changes on very large hairs when using hair polygon stripes. - ShaderToRGB node will remove any SSR and SSS form a shader. - SSS radius input now is no longer a scaling factor but defines an average radius. The SSS kernel "shape" (radii) are still defined by the socket default values. Appart from the listed changes no other regressions are expected.
69 lines
1.8 KiB
C
69 lines
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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#ifndef GPU_SHADER
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# include "GPU_shader_shared_utils.h"
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typedef struct ViewInfos ViewInfos;
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typedef struct ObjectMatrices ObjectMatrices;
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typedef struct ObjectInfos ObjectInfos;
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#endif
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#define DRW_SHADER_SHARED_H
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#define DRW_RESOURCE_CHUNK_LEN 512
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struct ViewInfos {
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/* View matrices */
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float4x4 persmat;
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float4x4 persinv;
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float4x4 viewmat;
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float4x4 viewinv;
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float4x4 winmat;
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float4x4 wininv;
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float4 clip_planes[6];
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float4 viewvecs[2];
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/* Should not be here. Not view dependent (only main view). */
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float4 viewcamtexcofac;
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float2 viewport_size;
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float2 viewport_size_inverse;
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/** Frustum culling data. */
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/** NOTE: vec3 arrays are padded to vec4. */
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float4 frustum_corners[8];
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float4 frustum_planes[6];
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};
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BLI_STATIC_ASSERT_ALIGN(ViewInfos, 16)
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/* Do not override old definitions if the shader uses this header but not shader info. */
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#ifdef USE_GPU_SHADER_CREATE_INFO
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/* TODO(@fclem): Mass rename. */
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# define ViewProjectionMatrix drw_view.persmat
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# define ViewProjectionMatrixInverse drw_view.persinv
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# define ViewMatrix drw_view.viewmat
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# define ViewMatrixInverse drw_view.viewinv
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# define ProjectionMatrix drw_view.winmat
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# define ProjectionMatrixInverse drw_view.wininv
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# define clipPlanes drw_view.clip_planes
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# define ViewVecs drw_view.viewvecs
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# define CameraTexCoFactors drw_view.viewcamtexcofac
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#endif
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struct ObjectMatrices {
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float4x4 drw_modelMatrix;
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float4x4 drw_modelMatrixInverse;
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};
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BLI_STATIC_ASSERT_ALIGN(ViewInfos, 16)
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struct ObjectInfos {
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float4 drw_OrcoTexCoFactors[2];
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float4 drw_ObjectColor;
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float4 drw_Infos;
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};
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BLI_STATIC_ASSERT_ALIGN(ViewInfos, 16)
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#define OrcoTexCoFactors (drw_infos[resource_id].drw_OrcoTexCoFactors)
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#define ObjectInfo (drw_infos[resource_id].drw_Infos)
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#define ObjectColor (drw_infos[resource_id].drw_ObjectColor)
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