fe213f80a4
This is the first step of moving the create infos back inside shader sources. All info files are now treated as source files. However, they are not considered in the include tree yet. This will come in another following PR. Each shader source file now generate a `.info` file containing only the create info declarations. This renames all info files so that they do not conflict with their previous versions that were copied (non-generated). Pull Request: https://projects.blender.org/blender/blender/pulls/146676
52 lines
1.5 KiB
GLSL
52 lines
1.5 KiB
GLSL
/* SPDX-FileCopyrightText: 2020-2023 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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#include "infos/gpencil_infos.hh"
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FRAGMENT_SHADER_CREATE_INFO(gpencil_antialiasing_stage_1)
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#include "gpu_shader_smaa_lib.glsl"
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void main()
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{
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#if SMAA_STAGE == 0
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/* Detect edges in color and revealage buffer. */
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out_edges = SMAALumaEdgeDetectionPS(uvs, offset, color_tx);
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out_edges = max(out_edges, SMAALumaEdgeDetectionPS(uvs, offset, reveal_tx));
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/* Discard if there is no edge. */
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if (dot(out_edges, float2(1.0f, 1.0f)) == 0.0f) {
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gpu_discard_fragment();
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return;
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}
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#elif SMAA_STAGE == 1
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out_weights = SMAABlendingWeightCalculationPS(
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uvs, pixcoord, offset, edges_tx, area_tx, search_tx, float4(0));
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#elif SMAA_STAGE == 2
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/* Resolve both buffers. */
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if (do_anti_aliasing) {
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out_color = SMAANeighborhoodBlendingPS(uvs, offset[0], color_tx, blend_tx);
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out_reveal = SMAANeighborhoodBlendingPS(uvs, offset[0], reveal_tx, blend_tx);
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}
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else {
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out_color = texture(color_tx, uvs);
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out_reveal = texture(reveal_tx, uvs);
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}
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/* Revealage, how much light passes through. */
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/* Average for alpha channel. */
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out_reveal.a = clamp(dot(out_reveal.rgb, float3(0.333334f)), 0.0f, 1.0f);
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/* Color buffer is already pre-multiplied. Just add it to the color. */
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/* Add the alpha. */
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out_color.a = 1.0f - out_reveal.a;
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if (only_alpha) {
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/* Special case in wire-frame X-ray mode. */
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out_color = float4(0.0f);
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out_reveal.rgb = out_reveal.aaa;
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}
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#endif
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}
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