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Prepare the vertex shader to draw without a vertex buffer

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This commit is contained in:
Magnus Norddahl 2022-06-30 23:59:37 +02:00
parent 8ec576c3bd
commit 71c6552258
1 changed files with 8 additions and 1 deletions
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9
src/lightmap/glsl_vert.h
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@ -20,10 +20,17 @@ layout(push_constant) uniform PushConstants
layout(location = 0) out vec3 worldpos;
vec2 positions[4] = vec2[](
vec2(0.0, 0.0),
vec2(0.0, 1.0),
vec2(1.0, 1.0),
vec2(1.0, 0.0)
);
void main()
{
worldpos = vec3(0.0);
gl_Position = vec4(0.0, 0.0, 0.0, 1.0);
gl_Position = vec4(positions[gl_VertexIndex] * 2.0 - 1.0, 0.0, 1.0);
}
)glsl";