25 lines
708 B
GLSL
25 lines
708 B
GLSL
#version 450
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// Vulkan GLSL vertex shader — postfx full-screen triangle
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// Used for SDL3 GPU API (SPIR-V path, Win/Linux).
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// Compile: glslc postfx.vert -o postfx.vert.spv
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// xxd -i postfx.vert.spv > ../../source/core/rendering/sdl3gpu/postfx_vert_spv.h
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layout(location = 0) out vec2 v_uv;
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void main() {
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// Full-screen triangle (no vertex buffer needed)
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const vec2 positions[3] = vec2[3](
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vec2(-1.0, -1.0),
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vec2( 3.0, -1.0),
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vec2(-1.0, 3.0)
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);
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const vec2 uvs[3] = vec2[3](
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vec2(0.0, 1.0),
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vec2(2.0, 1.0),
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vec2(0.0,-1.0)
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);
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gl_Position = vec4(positions[gl_VertexIndex], 0.0, 1.0);
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v_uv = uvs[gl_VertexIndex];
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}
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