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Commit 4ff5ed3b authored by Alexander Rose's avatar Alexander Rose
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fix cylinder imposter cap normals

parent fd86927e
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...@@ -55,7 +55,12 @@ void main() { ...@@ -55,7 +55,12 @@ void main() {
vec3 camDir = -mix(normalize(vModelPosition - uCameraPosition), uCameraDir, uIsOrtho); vec3 camDir = -mix(normalize(vModelPosition - uCameraPosition), uCameraDir, uIsOrtho);
vec3 dir = vEnd - vStart; vec3 dir = vEnd - vStart;
// ensure cylinder 'dir' is pointing towards the camera // ensure cylinder 'dir' is pointing towards the camera
if(dot(camDir, dir) < 0.0) dir = -dir; if(dot(camDir, dir) < 0.0) {
dir = -dir;
vec3 tmp = vStart;
vStart = vEnd;
vEnd = tmp;
}
vec3 left = cross(camDir, dir); vec3 left = cross(camDir, dir);
vec3 up = cross(left, dir); vec3 up = cross(left, dir);
......
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