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Remove repeat code from vert shader.

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This commit is contained in:
Jeroen Bakker
2021-12-03 11:09:08 +01:00
parent 482b8fb879
commit b07a6c2067
1 changed files with 11 additions and 16 deletions
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27
source/blender/draw/engines/image/shaders/engine_image_vert.glsl
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@@ -6,6 +6,8 @@
uniform int drawFlags;
in vec3 pos;
/* Normalized screen space uv coordinates. */
out vec2 uvs;
void main()
@@ -13,21 +15,14 @@ void main()
/* `pos` contains the coordinates of a quad (-1..1). but we need the coordinates of an image
* plane (0..1) */
vec3 image_pos = pos * 0.5 + 0.5;
uvs = image_pos.xy;
if ((drawFlags & IMAGE_DRAW_FLAG_DO_REPEAT) != 0) {
gl_Position = vec4(pos.xy, IMAGE_Z_DEPTH, 1.0);
uvs = point_view_to_object(image_pos).xy;
}
else {
vec3 world_pos = point_object_to_world(image_pos);
vec4 position = point_world_to_ndc(world_pos);
/* Move drawn pixels to the front. In the overlay engine the depth is used
* to detect if a transparency texture or the background color should be drawn.
* Vertices are between 0.0 and 0.2, Edges between 0.2 and 0.4
* actual pixels are at 0.75, 1.0 is used for the background. */
position.z = IMAGE_Z_DEPTH;
gl_Position = position;
/* UDIM texture uses the world position for tile selection. */
uvs = image_pos.xy;
}
vec3 world_pos = point_object_to_world(image_pos);
vec4 position = point_world_to_ndc(world_pos);
/* Move drawn pixels to the front. In the overlay engine the depth is used
* to detect if a transparency texture or the background color should be drawn.
* Vertices are between 0.0 and 0.2, Edges between 0.2 and 0.4
* actual pixels are at 0.75, 1.0 is used for the background. */
position.z = IMAGE_Z_DEPTH;
gl_Position = position;
}