37 lines
1.2 KiB
GLSL
37 lines
1.2 KiB
GLSL
#version 450
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layout(location = 0) in vec2 inPosition;
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layout(location = 1) in vec4 inColor;
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layout(location = 2) in vec2 inTexCoord;
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layout(location = 0) out vec4 fragColor;
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layout(location = 1) out vec2 fragTexCoord;
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// Use std140 layout and separate floats instead of vec2 to avoid alignment issues
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layout(binding = 0, std140) uniform UniformBufferObject {
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float time; // offset 0
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float resX; // offset 4
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float resY; // offset 8
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float rotation; // offset 12
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float wavePhase; // offset 16
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float padding1; // offset 20
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float padding2; // offset 24
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} ubo;
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void main() {
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// Input position is in pixel coordinates (0,0 = top-left)
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vec2 pos = inPosition;
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// Convert to NDC: (0, 0) to (width, height) -> (-1, -1) to (1, 1)
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// Note: Vulkan NDC has Y pointing down, but we want traditional Y-up
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float ndcX = (pos.x / ubo.resX) * 2.0 - 1.0;
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float ndcY = (pos.y / ubo.resY) * 2.0 - 1.0;
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// NO Y-flip needed here - text coordinates are already in screen space
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// where (0,0) is top-left, which matches Vulkan's framebuffer coordinates
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gl_Position = vec4(ndcX, ndcY, 0.0, 1.0);
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fragColor = inColor;
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fragTexCoord = inTexCoord;
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}
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