Differential D2889 Diff 11446 source/blender/draw/engines/gpencil/shaders/gpencil_fill_frag.glsl

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source/blender/draw/engines/gpencil/shaders/gpencil_fill_frag.glsl

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				uniform vec4 color2;
				uniform int fill_type;
				uniform float mix_factor;

				uniform float gradient_angle;
				uniform float gradient_radius;
				uniform float pattern_gridsize;
				uniform vec2 gradient_scale;
				uniform vec2 gradient_shift;

				uniform float texture_angle;
				uniform vec2 texture_scale;
				uniform vec2 texture_offset;
				uniform int texture_mix;
				uniform int texture_flip;
				uniform float texture_opacity;
				uniform int xraymode;

				uniform sampler2D myTexture;
				uniform int texture_clamp;

				/* keep this list synchronized with list in gpencil_draw_utils.c */
				#define SOLID 0
				#define GRADIENT 1
				#define RADIAL 2
				#define CHESS 3
				#define TEXTURE 4
				#define PATTERN 5

				#define GP_XRAY_FRONT 0
				#define GP_XRAY_3DSPACE 1
				#define GP_XRAY_BACK 2

				in vec4 finalColor;
				in vec2 texCoord_interp;
				out vec4 fragColor;
				#define texture2D texture

				void set_color(in vec4 color, in vec4 color2, in vec4 tcolor, in float mixv, in float factor,
				in int tmix, in int flip, out vec4 ocolor)
				{
				/* full color A */
				if (mixv == 1.0) {
				if (tmix == 1) {
				ocolor = (flip == 0) ? color : tcolor;
				}
				else {
				ocolor = (flip == 0) ? color : color2;
				}
				}
				/* full color B */
				else if (mixv == 0.0) {
				if (tmix == 1) {
				ocolor = (flip == 0) ? tcolor : color;
				}
				else {
				ocolor = (flip == 0) ? color2 : color;
				}
				}
				/* mix of colors */
				else {
				if (tmix == 1) {
				ocolor = (flip == 0) ? mix(color, tcolor, factor) : mix(tcolor, color, factor);
				}
				else {
				ocolor = (flip == 0) ? mix(color, color2, factor) : mix(color2, color, factor);
				}
				}
				}

				void main()
				{
				vec2 t_center = vec2(0.5, 0.5);
				mat2 matrot_tex = mat2(cos(texture_angle), -sin(texture_angle), sin(texture_angle), cos(texture_angle));
				vec2 rot_tex = (matrot_tex * (texCoord_interp - t_center)) + t_center + texture_offset;
				vec4 tmp_color;
				tmp_color = (texture_clamp == 0) ? texture2D(myTexture, rot_tex * texture_scale) : texture2D(myTexture, clamp(rot_tex * texture_scale, 0.0, 1.0));
				vec4 text_color = vec4(tmp_color[0], tmp_color[1], tmp_color[2], tmp_color[3] * texture_opacity);
				vec4 chesscolor;

				/* solid fill */
				if (fill_type == SOLID) {
				fragColor = finalColor;
				}
				else {
				vec2 center = vec2(0.5, 0.5) + gradient_shift;
				mat2 matrot = mat2(cos(gradient_angle), -sin(gradient_angle), sin(gradient_angle), cos(gradient_angle));
				vec2 rot = (((matrot * (texCoord_interp - center)) + center) * gradient_scale) + gradient_shift;
				/* gradient */
				if (fill_type == GRADIENT) {
				set_color(finalColor, color2, text_color, mix_factor, rot.x - mix_factor + 0.5, texture_mix, texture_flip, fragColor);
				}
				/* radial gradient */
				if (fill_type == RADIAL) {
				float in_rad = gradient_radius * mix_factor;
				float ex_rad = gradient_radius - in_rad;
				float intensity = 0;
				float distance = length((center - texCoord_interp) * gradient_scale);
				if (distance > gradient_radius) {
				discard;
				}
				if (distance > in_rad) {
				intensity = clamp(((distance - in_rad) / ex_rad), 0.0, 1.0);
				}
				set_color(finalColor, color2, text_color, mix_factor, intensity, texture_mix, texture_flip, fragColor);
				}
				/* chessboard */
				if (fill_type == CHESS) {
				vec2 pos = rot / pattern_gridsize;
				if ((fract(pos.x) < 0.5 && fract(pos.y) < 0.5) \|\| (fract(pos.x) > 0.5 && fract(pos.y) > 0.5)) {
				chesscolor = (texture_flip == 0) ? finalColor : color2;
				}
				else {
				chesscolor = (texture_flip == 0) ? color2 : finalColor;
				}
				/* mix with texture */
				fragColor = (texture_mix == 1) ? mix(chesscolor, text_color, mix_factor) : chesscolor;
				}
				/* texture */
				if (fill_type == TEXTURE) {
				fragColor = (texture_mix == 1) ? mix(text_color, finalColor, mix_factor) : text_color;
				}
				/* pattern */
				if (fill_type == PATTERN) {
				fragColor = finalColor;
				fragColor.a = min(text_color.a, finalColor.a);
				}
				}

				/* set zdepth */
				if (xraymode == GP_XRAY_FRONT) {
				gl_FragDepth = 0.0;
				}
				if (xraymode == GP_XRAY_3DSPACE) {
				gl_FragDepth = gl_FragCoord.z;
				}
				if (xraymode == GP_XRAY_BACK) {
				gl_FragDepth = 0.999999;
				}
				}