From 786cd63057d77e7987fe68986da6bca103c96415 Mon Sep 17 00:00:00 2001 From: Wilhem Barbier Date: Wed, 28 Jun 2017 17:27:47 +0200 Subject: Add a density parameter to GenImageRadialGradient --- src/textures.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'src/textures.c') diff --git a/src/textures.c b/src/textures.c index 67d03d8d..9b0067cf 100644 --- a/src/textures.c +++ b/src/textures.c @@ -1493,7 +1493,7 @@ Image GenImageGradientH(int width, int height, Color left, Color right) } // Generate image: radial gradient -Image GenImageRadialGradient(int width, int height, Color inner, Color outer) +Image GenImageRadialGradient(int width, int height, float density, Color inner, Color outer) { Color *pixels = (Color*)malloc(width * height * sizeof(Color)); float radius = (width < height) ? (float)width / 2.f : (float)height / 2.f; @@ -1505,7 +1505,8 @@ Image GenImageRadialGradient(int width, int height, Color inner, Color outer) for (int x = 0; x < width; x++) { float dist = hypotf((float)x - center_x, (float)y - center_y); - float factor = dist / radius; + float factor = (dist - radius * density) / (radius * (1.f - density)); + factor = fmax(factor, 0.f); factor = fmin(factor, 1.f); // dist can be bigger than radius so we have to check pixels[y*width + x].r = (int)((float)outer.r * factor + (float)inner.r * (1.f - factor)); pixels[y*width + x].g = (int)((float)outer.g * factor + (float)inner.g * (1.f - factor)); -- cgit v1.2.3