/**
* Initialize this ProjectedDepthTexture with the renderer
*
* @param r
*/
public void init(final Renderer r) {
// already initialized ?
if (textureRenderer != null) {
return;
}
textureRenderer = ImageUtil.createTextureRenderer(0, 0, r, true);
if (isParallel) {
textureRenderer.getCamera().setProjectionMode(Camera.ProjectionMode.Parallel);
}
// Enforce performance enhancing states on the renderer.
// No textures or colors are required since we're only
// interested in recording depth.
// Also only need front faces when rendering the shadow maps
// turn off clipping
ClipState noClip = new ClipState();
noClip.setEnabled(false);
textureRenderer.enforceState(noClip);
// turn off texturing
TextureState noTexture = new TextureState();
noTexture.setEnabled(false);
textureRenderer.enforceState(noTexture);
// turn off colors
ColorMaskState colorDisabled = new ColorMaskState();
colorDisabled.setAll(false);
textureRenderer.enforceState(colorDisabled);
// cull back faces
CullState cullFace = new CullState();
cullFace.setEnabled(true);
cullFace.setCullFace(CullState.Face.Back);
textureRenderer.enforceState(cullFace);
// turn off lights
LightState noLights = new LightState();
noLights.setEnabled(false);
textureRenderer.enforceState(noLights);
// use flat shading
ShadingState flat = new ShadingState();
flat.setShadingMode(ShadingMode.Flat);
textureRenderer.enforceState(flat);
// disable GLSLShaderObjectsState
GLSLShaderObjectsState glsl = new GLSLShaderObjectsState();
glsl.setEnabled(false);
textureRenderer.enforceState(glsl);
// enforce the shadow offset parameters
textureRenderer.enforceState(offsetState);
if (texture == null) {
createTexture();
}
textureRenderer.setupTexture(texture);
}
