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

Changeset View

Standalone View

				uniform vec2 size;
				uniform vec4 color;
				uniform int uselines;
				uniform vec3 gridcolor;

				out vec4 FragColor;

				void main()
				{
				vec2 uv = vec2(gl_FragCoord.xy);
				float dx = size[0];
				float dy = size[1];
				vec4 gcolor = vec4(gridcolor.r, gridcolor.g, gridcolor.b, 1.0);
				/* avoid too small grid */
				if (dx < 15.0) {
				dx = 15.0;
				}
				if (dy < 15.0) {
				dy = 15.0;
				}

				vec2 coord = vec2(dx * floor(uv.x / dx), dy * floor(uv.y / dy));
				vec4 outcolor = vec4(color);
				if (uselines == 1) {
				float difx = uv.x - (floor(uv.x / dx) * dx);
				if (difx == 0.5) {
				outcolor = gcolor;
				}
				float dify = uv.y - (floor(uv.y / dy) * dy);
				if (dify == 0.5) {
				outcolor = gcolor;
				}
				}

				FragColor = outcolor;
				}