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36 lines
1.1 KiB
GLSL
36 lines
1.1 KiB
GLSL
#line 1
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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void main(void) {
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Image image = fetch_image(gl_InstanceID);
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#ifdef WR_FEATURE_TRANSFORM
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TransformVertexInfo vi = write_transform_vertex(image.info);
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vLocalRect = vi.clipped_local_rect;
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vLocalPos = vi.local_pos;
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vStretchSize = image.stretch_size_uvkind.xy;
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#else
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VertexInfo vi = write_vertex(image.info);
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vUv = (vi.local_clamped_pos - vi.local_rect.p0) / image.stretch_size_uvkind.xy;
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#endif
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// vUv will contain how many times this image has wrapped around the image size.
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vec2 st0 = image.st_rect.xy;
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vec2 st1 = image.st_rect.zw;
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switch (uint(image.stretch_size_uvkind.z)) {
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case UV_NORMALIZED:
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break;
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case UV_PIXEL: {
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vec2 texture_size = vec2(textureSize(sDiffuse, 0));
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st0 /= texture_size;
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st1 /= texture_size;
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}
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break;
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}
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vTextureSize = st1 - st0;
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vTextureOffset = st0;
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}
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