James Bulman
eb3c81cd04
Broken and buggy font stuff Fixed some typos Fixed draw rect not using dim properly
73 lines
1.3 KiB
GLSL
73 lines
1.3 KiB
GLSL
#version 460 core
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#extension GL_EXT_scalar_block_layout : enable
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uint indices[6] = { 0, 1, 3, 0, 3, 2 };
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vec2 verticies[4] = vec2[](
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vec2(-0.5, -0.5),
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vec2( 0.5, -0.5),
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vec2(-0.5, 0.5),
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vec2( 0.5, 0.5)
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);
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struct G_Rect {
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uint id;
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uint c[4];
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float uv[4];
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float angle;
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float x, y;
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float w, h;
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float _pad0, _pad1;
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};
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struct Vertex {
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vec4 p;
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vec2 uv;
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uint c;
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uint pad;
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};
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layout(push_constant, row_major)
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uniform Global {
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mat4 proj;
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};
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layout(binding = 0, scalar)
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readonly buffer Rect {
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G_Rect rects[];
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};
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layout(location = 0) out vec2 frag_uv;
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layout(location = 1) out vec4 frag_c;
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layout(location = 2) out flat uint texid;
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vec4 unorm_colour(uint c) {
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vec4 result = vec4((c >> 0) & 0xFF, (c >> 8) & 0xFF, (c >> 16) & 0xFF, (c >> 24) & 0xFF) / 255.0f;
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return result;
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}
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vec2 rotate2f(vec2 v, float angle) {
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float s = sin(angle);
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float c = cos(angle);
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vec2 result = vec2(c * v.x - s * v.y, s * v.x + c * v.y);
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return result;
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}
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void main() {
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G_Rect rect = rects[gl_InstanceIndex];
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uint idx = indices[gl_VertexIndex];
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vec2 p = (rotate2f(verticies[idx], rect.angle) * vec2(rect.w, rect.h)) + vec2(rect.x, rect.y);
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gl_Position = proj * vec4(p, 1.0f, 1.0f);
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frag_uv = vec2(rect.uv[(idx & 1) << 1], rect.uv[1 + (uint(idx / 2) << 1)]);
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frag_c = unorm_colour(rect.c[idx]);
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texid = rect.id;
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}
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