@Override
public long onEstimateSize(
final JCGLTextureUnitContextParentType tc, final R2LightBufferDescriptionType key) {
final AreaInclusiveUnsignedLType area = key.getArea();
final UnsignedRangeInclusiveL range_x = area.getRangeX();
final UnsignedRangeInclusiveL range_y = area.getRangeY();
return range_x.getInterval() * range_y.getInterval();
}
@Override
public void onReceiveValues(
final JCGLTexturesType g_tex,
final JCGLShadersType g_sh,
final JCGLTextureUnitContextMutableType tc,
final AreaInclusiveUnsignedLType viewport,
final R2LightProjectiveWithShadowVarianceType values,
final R2MatricesObserverValuesType m) {
NullCheck.notNull(g_tex);
NullCheck.notNull(g_sh);
NullCheck.notNull(tc);
NullCheck.notNull(values);
NullCheck.notNull(m);
/** Upload the current view rays. */
final R2ViewRaysReadableType view_rays = m.getViewRays();
g_sh.shaderUniformPutVector3f(this.u_view_rays_origin_x0y0, view_rays.getOriginX0Y0());
g_sh.shaderUniformPutVector3f(this.u_view_rays_origin_x1y0, view_rays.getOriginX1Y0());
g_sh.shaderUniformPutVector3f(this.u_view_rays_origin_x0y1, view_rays.getOriginX0Y1());
g_sh.shaderUniformPutVector3f(this.u_view_rays_origin_x1y1, view_rays.getOriginX1Y1());
g_sh.shaderUniformPutVector3f(this.u_view_rays_ray_x0y0, view_rays.getRayX0Y0());
g_sh.shaderUniformPutVector3f(this.u_view_rays_ray_x1y0, view_rays.getRayX1Y0());
g_sh.shaderUniformPutVector3f(this.u_view_rays_ray_x0y1, view_rays.getRayX0Y1());
g_sh.shaderUniformPutVector3f(this.u_view_rays_ray_x1y1, view_rays.getRayX1Y1());
/** Upload the viewport. */
final UnsignedRangeInclusiveL range_x = viewport.getRangeX();
final UnsignedRangeInclusiveL range_y = viewport.getRangeY();
g_sh.shaderUniformPutFloat(
this.u_viewport_inverse_width, (float) (1.0 / (double) range_x.getInterval()));
g_sh.shaderUniformPutFloat(
this.u_viewport_inverse_height, (float) (1.0 / (double) range_y.getInterval()));
/** Upload the scene's depth coefficient. */
g_sh.shaderUniformPutFloat(
this.u_depth_coefficient, (float) R2Projections.getDepthCoefficient(m.getProjection()));
/** Upload the projection for the light volume. */
g_sh.shaderUniformPutMatrix4x4f(this.u_transform_projection, m.getMatrixProjection());
g_sh.shaderUniformPutMatrix4x4f(
this.u_transform_projection_inverse, m.getMatrixProjectionInverse());
/** Transform the light's position to eye-space and upload it. */
final PVectorReadable3FType<R2SpaceWorldType> position = values.getPosition();
this.position_world.copyFrom3F(position);
this.position_world.setWF(1.0f);
final R2TransformContextType trc = m.getTransformContext();
PMatrixM4x4F.multiplyVector4F(
trc.getContextPM4F(), m.getMatrixView(), this.position_world, this.position_eye);
this.position_eye3.copyFrom3F(this.position_eye);
g_sh.shaderUniformPutVector3f(this.u_light_projective_position, this.position_eye3);
/** Upload the projected image. */
this.unit_image = tc.unitContextBindTexture2D(g_tex, values.getImage().get());
g_sh.shaderUniformPutTexture2DUnit(this.u_light_projective_image, this.unit_image);
/** Upload the light values. */
g_sh.shaderUniformPutVector3f(this.u_light_projective_color, values.getColor());
g_sh.shaderUniformPutFloat(this.u_light_projective_intensity, values.getIntensity());
g_sh.shaderUniformPutFloat(this.u_light_projective_inverse_falloff, 1.0f / values.getFalloff());
g_sh.shaderUniformPutFloat(this.u_light_projective_inverse_range, 1.0f / values.getRadius());
g_sh.shaderUniformPutTexture2DUnit(this.u_light_projective_image, this.unit_image);
/** Upload the shadow values. */
final R2ShadowDepthVarianceType shadow = values.getShadow();
g_sh.shaderUniformPutFloat(this.u_shadow_bleed_reduction, shadow.getLightBleedReduction());
g_sh.shaderUniformPutFloat(
this.u_shadow_depth_coefficient,
(float) R2Projections.getDepthCoefficient(values.getProjection()));
g_sh.shaderUniformPutFloat(this.u_shadow_factor_minimum, shadow.getMinimumFactor());
g_sh.shaderUniformPutFloat(this.u_shadow_variance_minimum, shadow.getMinimumVariance());
}