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
55 lines
2.0 KiB
GLSL
55 lines
2.0 KiB
GLSL
/* SPDX-FileCopyrightText: 2022-2023 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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/**
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* Draw the icons, leaving a semi-transparent rectangle on top of the icon.
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*
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* The top-left corner of the rectangle is rounded and drawn with anti-alias.
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* The anti-alias is done by transitioning from the outer to the inner radius of
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* the rounded corner, and the rectangle sides.
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*/
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#include "infos/gpu_shader_icon_infos.hh"
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FRAGMENT_SHADER_CREATE_INFO(gpu_shader_icon)
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void main()
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{
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/* Sample texture with LOD BIAS. Used instead of custom LOD bias in GPU_SAMPLER_CUSTOM_ICON. */
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fragColor = texture(image, texCoord_interp, -0.5f) * final_color;
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if (do_corner_masking) {
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/* Top-left rounded corner parameters. */
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constexpr float circle_radius_outer = 0.1f;
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constexpr float circle_radius_inner = 0.075f;
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/**
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* Add a bit transparency to see a bit of the icon, without
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* getting on the way of readability. */
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constexpr float mask_transparency = 0.25f;
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float2 circle_center = float2(circle_radius_outer - text_width, 0.5f);
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/* Radius in icon space (1 is the icon width). */
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float radius = length(mask_coord_interp - circle_center);
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float mask = smoothstep(circle_radius_inner, circle_radius_outer, radius);
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bool lower_half = mask_coord_interp.y < circle_center.y;
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bool right_half = mask_coord_interp.x > circle_center.x;
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if (right_half && mask_coord_interp.y < circle_center.y + circle_radius_outer) {
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mask = smoothstep(circle_center.y + circle_radius_inner,
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circle_center.y + circle_radius_outer,
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mask_coord_interp.y);
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}
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if (lower_half && mask_coord_interp.x > circle_center.x - circle_radius_outer) {
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mask = smoothstep(circle_center.x - circle_radius_inner,
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circle_center.x - circle_radius_outer,
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mask_coord_interp.x);
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}
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fragColor = mix(float4(0.0f), fragColor, max(mask_transparency, mask));
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}
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}
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