Differential D16990 Diff 60050 source/blender/compositor/realtime_compositor/shaders/compositor_glare_ghost_base.glsl

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

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

	void main()			void main()
	{			{
	ivec2 texel = ivec2(gl_GlobalInvocationID.xy);			ivec2 texel = ivec2(gl_GlobalInvocationID.xy);
	ivec2 input_size = texture_size(small_ghost_tx);			ivec2 input_size = texture_size(small_ghost_tx);

	/* Add 0.5 to evaluate the input sampler at the center of the pixel and divide by the image size			/* Add 0.5 to evaluate the input sampler at the center of the pixel and divide by the image size
	* to get the coordinates into the sampler's expected [0, 1] range. */			* to get the coordinates into the sampler's expected [0, 1] range. */
	vec2 coordinates = (vec2(texel) + vec2(0.5)) / input_size;			vec2 coordinates = (vec2(texel) + vec2(0.5)) / vec2(input_size);

	/* The small ghost is scaled down with the origin as the center of the image by a factor of 2.13,			/* The small ghost is scaled down with the origin as the center of the image by a factor of 2.13,
	* while the big ghost is flipped and scaled up with the origin as the center of the image by a			* while the big ghost is flipped and scaled up with the origin as the center of the image by a
	* factor of 0.97. Note that 1) The negative scale implements the flipping. 2) Factors larger			* factor of 0.97. Note that 1) The negative scale implements the flipping. 2) Factors larger
	* than 1 actually scales down the image since the factor multiplies the coordinates and not the			* than 1 actually scales down the image since the factor multiplies the coordinates and not the
	* images itself. 3) The values are arbitrarily chosen using visual judgement. */			* images itself. 3) The values are arbitrarily chosen using visual judgement. */
	float small_ghost_scale = 2.13;			float small_ghost_scale = 2.13;
	float big_ghost_scale = -0.97;			float big_ghost_scale = -0.97;
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