#version 450 #extension GL_ARB_separate_shader_objects : enable layout(location = 0) in vec3 vPos; layout(location = 1) in vec2 vUv; layout(location = 0) out vec2 fUv; layout(binding = 0) uniform Transform { mat4 viewProj; vec3 pos; vec2 size; } trans; mat4 RemoveRotation(mat4 inMat) { inMat[0][0] = 1.0; inMat[0][1] = 0.0; inMat[0][2] = 0.0; inMat[1][0] = 0.0; inMat[1][1] = 1.0; inMat[1][2] = 0.0; inMat[2][0] = 0.0; inMat[2][1] = 0.0; inMat[2][2] = 1.0; return inMat; } void main() { // The vec4 we will use to set gl_Position vec4 pos = vec4(trans.pos, 1.0f); // Adjust the position based on the camera view // Extract the right and up vectors from the view matrix vec3 right = vec3(trans.viewProj[0][0], trans.viewProj[1][0], trans.viewProj[2][0]); vec3 up = vec3(trans.viewProj[0][1], trans.viewProj[1][1], trans.viewProj[2][1]); // Adjust the quad vertices to face the camera // The inPosition.xy should be in NDC space, from -1 to 1 pos.xyz += (right * vPos.x * trans.size.x) + (up * vPos.y * trans.size.y); // Output position gl_Position = trans.viewProj * pos; // Pass through the texture coordinates fUv = vUv; }