Differential D6922 Diff 22033 source/blender/gpu/shaders/gpu_shader_image_overlays_stereo_merge_frag.glsl

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source/blender/gpu/shaders/gpu_shader_image_overlays_stereo_merge_frag.glsl

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				#define S3D_DISPLAY_ANAGLYPH 0
				#define S3D_DISPLAY_INTERLACE 1
				// #define S3D_DISPLAY_PAGEFLIP 2
				#define S3D_DISPLAY_SIDEBYSIDE 3
				#define S3D_DISPLAY_TOPBOTTOM 4

				#define S3D_INTERLACE_ROW 0
				#define S3D_INTERLACE_COLUMN 1
				#define S3D_INTERLACE_CHECKERBOARD 2

				#define S3D_ANAGLYPH_REDCYAN 0
				#define S3D_ANAGLYPH_GREENMAGENTA 1
				fclemUnsubmitted Done Inline Actions Camel Case for uniform samplers. fclem: Camel Case for uniform samplers.
				#define S3D_ANAGLYPH_YELLOWBLUE 2

				/* Composite stereo textures */

				uniform sampler2D image_r_texture;
				uniform sampler2D image_l_texture;
				uniform sampler2D overlays_r_texture;
				uniform sampler2D overlays_l_texture;

				fclemUnsubmitted Done Inline Actions Did you mean `layout(location = 1)` ? Index is only when using dual source blending. Here we are using multitarget rendering. fclem: Did you mean `layout(location = 1)` ? Index is only when using dual source blending. Here we…
				uniform int stereoDisplaySettings;

				#define stereo_display_mode (stereoDisplaySettings & ((1 << 3) - 1))
				#define stereo_interlace_mode (stereoDisplaySettings >> 3)
				#define stereo_anaglyph_mode (stereoDisplaySettings >> 3)

				in vec2 texCoord_interp;

				layout(location = 0, index = 0) out vec4 imageColor;
				layout(location = 0, index = 1) out vec4 overlayColor;

				const vec4 anaglyph_masks[6] = vec4[6](vec4(1.0, 0.0, 0.0, 0.5),
				vec4(0.0, 1.0, 1.0, 0.5),
				vec4(0.0, 1.0, 0.0, 0.5),
				vec4(1.0, 0.0, 1.0, 0.5),
				vec4(1.0, 1.0, 0.0, 0.5),
				vec4(0.0, 0.0, 1.0, 0.5));

				bool interlace(ivec2 texel)
				{
				int interlace_mode = stereo_interlace_mode;
				if (interlace_mode == S3D_INTERLACE_CHECKERBOARD) {
				return ((texel.x + texel.y) & 1) != 0;
				fclemUnsubmitted Done Inline Actions discard implies return. fclem: discard implies return.
				}
				else if (interlace_mode == S3D_INTERLACE_ROW) {
				return (texel.y & 1) != 0;
				}
				else if (interlace_mode == S3D_INTERLACE_COLUMN) {
				return (texel.x & 1) != 0;
				}
				}

				vec4 stereo_composite(sampler2D sampler_r, sampler2D sampler_l)
				{
				if (stereo_display_mode == S3D_DISPLAY_ANAGLYPH) {
				ivec2 texel = ivec2(gl_FragCoord.xy);
				return texelFetch(sampler_r, texel, 0) * anaglyph_masks[stereo_anaglyph_mode * 2] +
				texelFetch(sampler_l, texel, 0) * anaglyph_masks[stereo_anaglyph_mode * 2 + 1];
				}
				else if (stereo_display_mode == S3D_DISPLAY_INTERLACE) {
				ivec2 texel = ivec2(gl_FragCoord.xy);
				if (interlace(texel)) {
				return texelFetch(sampler_r, texel, 0);
				}
				else {
				return texelFetch(sampler_l, texel, 0);
				}
				}
				else {
				return vec4(1.0, 0.0, 1.0, 1.0);
				}
				}

				void main()
				{
				imageColor = stereo_composite(image_r_texture, image_l_texture);
				overlayColor = stereo_composite(overlays_r_texture, overlays_l_texture);
				}