29 lines
786 B
GLSL
29 lines
786 B
GLSL
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#version 330 core
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layout(location = 0) in vec3 squareVertices;
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layout(location = 1) in vec4 xyzs;
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layout(location = 2) in vec4 color;
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out vec2 UV;
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out vec4 ParticleColor;
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uniform vec3 CameraRight_worldspace;
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uniform vec3 CameraUp_worldspace;
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uniform mat4 VP;
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void main()
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{
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float particleSize = xyzs.w; // because we encoded it this way.
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vec3 particleCenter_wordspace = xyzs.xyz;
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vec3 vertexPosition_worldspace =
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particleCenter_wordspace
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+ CameraRight_worldspace * squareVertices.x * particleSize
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+ CameraUp_worldspace * squareVertices.y * particleSize;
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// Output position of the vertex
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gl_Position = VP * vec4(vertexPosition_worldspace, 1.0f);
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// UV of the vertex. No special space for this one.
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UV = squareVertices.xy + vec2(0.5, 0.5);
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ParticleColor = color;
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}
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