Differential D6093 Diff 19304 source/blender/draw/editors/shaders/image_uv_editor_region_frag.glsl

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source/blender/draw/editors/shaders/image_uv_editor_region_frag.glsl

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				uniform sampler2D image;

				/* UIResouces.TH_BACK */
				uniform vec3 uiColorBackground;
				uniform vec4 shuffleChannels;

				/* Normalize to scene camera far/near plane */
				uniform float cameraClipStart = 0.1;
				uniform float cameraClipEnd = 100.0;
				uniform float cameraClipScale = 0.01;

				in vec2 texCoord_interp;

				out vec4 fragColor;

				#ifdef IMAGE_SHADER_FLAG_NORMALIZE_DEPTH
				float normalize_depth(float input_depth)
				{
				float clippedValue = mix(0.0, 1.0, 1.0 - (input_depth - cameraClipStart) * cameraClipScale);
				clippedValue = clamp(clippedValue, 0.0, 1.0);

				/* Add a small curvation to show the depth texture better */
				clippedValue *= clippedValue;
				return clippedValue;
				}
				#endif
				void main()
				{
				vec4 color;
				#ifndef IMAGE_SHADER_FLAG_REPEAT_IMAGE
				if (texCoord_interp.x < 0.0 \|\| texCoord_interp.x > 1.0 \|\| texCoord_interp.y < 0.0 \|\|
				texCoord_interp.y > 1.0) {
				/* set alpha to 1 so checkerboard does not bleed in */
				fragColor = vec4(uiColorBackground, 1.0);
				return;
				}
				#endif /* !IMAGE_SHADER_FLAG_REPEAT_IMAGE */

				#ifdef IMAGE_SHADER_FLAG_VALID_IMAGE
				color = texture(image, texCoord_interp);

				# ifdef IMAGE_SHADER_FLAG_SHUFFLE_CHANNELS
				float shuffled_channel = color.r * shuffleChannels.r + color.g * shuffleChannels.g +
				color.b * shuffleChannels.b + color.a * shuffleChannels.a;
				# ifdef IMAGE_SHADER_FLAG_NORMALIZE_DEPTH
				shuffled_channel = normalize_depth(shuffled_channel);
				# endif /* IMAGE_SHADER_FLAG_NORMALIZE_DEPTH */

				color = vec4(shuffled_channel);
				# endif /* IMAGE_SHADER_FLAG_SHUFFLE_CHANNELS */

				# ifndef IMAGE_SHADER_FLAG_USE_ALPHA
				color.a = 1.0;
				# endif /* !IMAGE_SHADER_FLAG_USE_ALPHA */

				#else /* IMAGE_SHADER_FLAG_VALID_IMAGE */
				/* TODO: draw grid */
				color = vec4(0.0, 0.0, 0.0, 0.0);
				#endif /* IMAGE_SHADER_FLAG_VALID_IMAGE */

				fragColor = color;
				}
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