Differential D2889 Diff 9581 source/blender/gpu/shaders/gpu_shader_gpencil_fill_frag.glsl

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source/blender/gpu/shaders/gpu_shader_gpencil_fill_frag.glsl

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

				uniform float g_angle;
				uniform float g_radius;
				uniform float g_boxsize;
				uniform vec2 g_scale;
				uniform vec2 g_shift;

				uniform float t_angle;
				uniform vec2 t_scale;
				uniform vec2 t_offset;
				uniform int t_mix;
				uniform int t_flip;
				uniform float t_opacity;

				uniform sampler2D myTexture;

				/* keep this list synchronized with list in DNA_brush_types.h */
				#define SOLID 0
				#define GRADIENT 1
				#define RADIAL 2
				#define CHESS 3
				#define TEXTURE 4

				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) {
				if (flip == 0) {
				ocolor = color;
				}
				else {
				ocolor = tcolor;
				}
				}
				else {
				if (flip == 0) {
				ocolor = color;
				}
				else {
				ocolor = color2;
				}
				}
				}
				/* full color B */
				else if (mixv == 0.0) {
				if (tmix == 1) {
				if (flip == 0) {
				ocolor = tcolor;
				}
				else {
				ocolor = color;
				}
				}
				else {
				if (flip == 0) {
				ocolor = color2;
				}
				else {
				ocolor = color;
				}
				}
				}
				/* mix of colors */
				else {
				if (tmix == 1) {
				if (flip == 0) {
				ocolor = mix(color, tcolor, factor);
				}
				else {
				ocolor = mix(tcolor, color, factor);
				}
				}
				else {
				if (flip == 0) {
				ocolor = mix(color, color2, factor);
				}
				else {
				ocolor = mix(color2, color, factor);
				}
				}
				}
				}

				void main()
				{
				vec2 t_center = vec2(0.5, 0.5);
				mat2 matrot_tex = mat2(cos(t_angle), -sin(t_angle), sin(t_angle), cos(t_angle));
				vec2 rot_tex = (matrot_tex * (texCoord_interp - t_center)) + t_center + t_offset;
				vec4 tmp_color = texture2D(myTexture, rot_tex * t_scale);
				vec4 text_color = vec4(tmp_color[0], tmp_color[1], tmp_color[2], tmp_color[3] * t_opacity);
				vec4 chesscolor;

				/* solid fill */
				if (fill_type == SOLID) {
				if (t_mix == 1) {
				fragColor = mix(color, text_color, mix_factor);
				}
				else {
				fragColor = color;
				}
				}
				else {
				vec2 center = vec2(0.5, 0.5) + g_shift;
				mat2 matrot = mat2(cos(g_angle), -sin(g_angle), sin(g_angle), cos(g_angle));
				vec2 rot = (((matrot * (texCoord_interp - center)) + center) * g_scale) + g_shift;
				/* gradient */
				if (fill_type == GRADIENT) {
				set_color(color, color2, text_color, mix_factor, rot.x - mix_factor + 0.5, t_mix, t_flip, fragColor);
				}
				/* radial gradient */
				if (fill_type == RADIAL) {
				float in_rad = g_radius * mix_factor;
				float ex_rad = g_radius - in_rad;
				float intensity = 0;
				float distance = length((center - texCoord_interp) * g_scale);
				if (distance > g_radius) {
				discard;
				}
				if (distance > in_rad) {
				intensity = clamp(((distance - in_rad) / ex_rad), 0.0, 1.0);
				}
				set_color(color, color2, text_color, mix_factor, intensity, t_mix, t_flip, fragColor);
				}
				/* chessboard */
				if (fill_type == CHESS) {
				vec2 pos = rot / g_boxsize;
				if ((fract(pos.x) < 0.5 && fract(pos.y) < 0.5) \|\| (fract(pos.x) > 0.5 && fract(pos.y) > 0.5)) {
				if (t_flip == 0) {
				chesscolor = color;
				}
				else {
				chesscolor = color2;
				}
				}
				else {
				if (t_flip == 0) {
				chesscolor = color2;
				}
				else {
				chesscolor = color;
				}
				}
				/* mix with texture */
				if (t_mix == 1) {
				fragColor = mix(chesscolor, text_color, mix_factor);
				}
				else {
				fragColor = chesscolor;
				}
				}
				/* texture */
				if (fill_type == TEXTURE) {
				fragColor = text_color;
				}
				}
				}