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uniform mat4 ViewProjectionMatrix;
uniform int pointSize = 2;
uniform int frameCurrent;
uniform int cacheStart;
uniform bool showKeyFrames = true;
uniform bool useCustomColor;
uniform vec3 customColor;
uniform int stepSize;
in vec3 pos;
in int flag;
#define MOTIONPATH_VERT_SEL (1 << 0)
#define MOTIONPATH_VERT_KEY (1 << 1)
out vec4 finalColor;
void main()
{
gl_Position = ViewProjectionMatrix * vec4(pos, 1.0);
gl_PointSize = float(pointSize + 2);
int frame = gl_VertexID + cacheStart;
finalColor = (useCustomColor) ? vec4(customColor, 1.0) : vec4(1.0);
/* Bias to reduce z fighting with the path */
gl_Position.z -= 1e-4;
if (gl_VertexID % stepSize == 0) {
gl_PointSize = float(pointSize) + 4;
}
if (showKeyFrames) {
if ((flag & MOTIONPATH_VERT_KEY) != 0) {
gl_PointSize = float(pointSize + 5);
finalColor = colorVertexSelect;
/* Bias more to get these on top of regular points */
gl_Position.z -= 1e-4;
}
/* Draw big green dot where the current frame is.
* NOTE: this is only done when keyframes are shown, since this adds similar types of clutter
*/
if (frame == frameCurrent) {
gl_PointSize = float(pointSize + 8);
finalColor = colorCurrentFrame;
/* Bias more to get these on top of keyframes */
gl_Position.z -= 1e-4;
}
}
}
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