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24 lines
826 B
GLSL
24 lines
826 B
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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struct Image {
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PrimitiveInfo info;
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vec4 st_rect; // Location of the image texture in the texture atlas.
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vec4 stretch_size; // Size of the actual image.
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};
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layout(std140) uniform Items {
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Image images[WR_MAX_PRIM_ITEMS];
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};
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void main(void) {
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Image image = images[gl_InstanceID];
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VertexInfo vi = write_vertex(image.info);
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// vUv will contain how many times this image has wrapped around the image size.
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vUv = (vi.local_clamped_pos - vi.local_rect.p0) / image.stretch_size.xy;
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vTextureSize = image.st_rect.zw - image.st_rect.xy;
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vTextureOffset = image.st_rect.xy;
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}
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