Differential D16762 Diff 58729 source/blender/compositor/realtime_compositor/shaders/compositor_symmetric_blur.glsl

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source/blender/compositor/realtime_compositor/shaders/compositor_symmetric_blur.glsl

	#pragma BLENDER_REQUIRE(gpu_shader_compositor_blur_common.glsl)			#pragma BLENDER_REQUIRE(gpu_shader_compositor_blur_common.glsl)
	#pragma BLENDER_REQUIRE(gpu_shader_compositor_texture_utilities.glsl)			#pragma BLENDER_REQUIRE(gpu_shader_compositor_texture_utilities.glsl)

				/* Loads the input color of the pixel at the given texel. If gamma correction is enabled, the color
				* is gamma corrected. If bounds are extended, then the input is treated as padded by a blur size
				* amount of pixels of zero color, and the given texel is assumed to be in the space of the image
				* after padding. So we offset the texel by the blur radius amount and fallback to a zero color if
				* it is out of bounds. For instance, if the input is padded by 5 pixels to the left of the image,
				* the first 5 pixels should be out of bounds and thus zero, hence the introduced offset. */
	vec4 load_input(ivec2 texel)			vec4 load_input(ivec2 texel)
	{			{
	vec4 color;			vec4 color;
	if (extend_bounds) {			if (extend_bounds) {
	/* If bounds are extended, then we treat the input as padded by a radius amount of pixels. So			/* Notice that we subtract 1 because the weights texture have an extra center weight, see the
	* we load the input with an offset by the radius amount and fallback to a transparent color if			* SymmetricBlurWeights class for more information. */
	* it is out of bounds. Notice that we subtract 1 because the weights texture have an extra			ivec2 blur_radius = texture_size(weights_tx) - 1;
	* center weight, see the SymmetricBlurWeights for more information. */			color = texture_load(input_tx, texel - blur_radius, vec4(0.0));
	ivec2 blur_size = texture_size(weights_tx) - 1;
	color = texture_load(input_tx, texel - blur_size, vec4(0.0));
	}			}
	else {			else {
	color = texture_load(input_tx, texel);			color = texture_load(input_tx, texel);
	}			}

	if (gamma_correct) {			if (gamma_correct) {
	color = gamma_correct_blur_input(color);			color = gamma_correct_blur_input(color);
	}			}
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