From b4739e6036a173dfdb803569b866f902500806e9 Mon Sep 17 00:00:00 2001 From: Anuken Date: Thu, 9 Apr 2020 21:15:42 -0400 Subject: [PATCH] Simpler sun shader --- core/assets/shaders/sun.vert | 29 ++--------------------------- 1 file changed, 2 insertions(+), 27 deletions(-) diff --git a/core/assets/shaders/sun.vert b/core/assets/shaders/sun.vert index 0b4d2d8783..4203a415dc 100755 --- a/core/assets/shaders/sun.vert +++ b/core/assets/shaders/sun.vert @@ -91,32 +91,7 @@ float snoise(vec4 v){ return 49.0 * (dot(m0*m0, vec3(dot(p0, x0), dot(p1, x1), dot(p2, x2)))+ dot(m1*m1, vec2(dot(p3, x3), dot(p4, x4)))); } -float onoise(vec4 pos, int octaves, float falloff, float scl, float po){ - float sum = 0.0; - float samp = 0.0; - float amp = 1.0; - float cscl = scl; - - for (int i = 0; i < octaves; i ++){ - sum += (snoise(pos / vec4(cscl, cscl, cscl, 1.0)) + 1.0) / 2.0 * amp; - cscl /= 2.0; - samp += amp; - amp *= falloff; - } - - return pow(sum / samp, po); -} - void main(){ - vec4 pos = a_position; - - float height = onoise(vec4(a_position.xyz, u_time + u_seed), u_octaves, u_falloff, u_scale, u_power); - - int cindex = int(height * float(u_colornum)); - - float dst = 1.0 - (u_magnitude/2.0) + height*u_magnitude; - - v_height = (height + (onoise(vec4(a_position.xyz, u_time + u_seed*2.0), u_octaves, u_falloff, u_scale, u_power) - 0.5) / 6.0 - 0.5) * u_spread + 0.5; - - gl_Position = u_proj * u_trans * a_position; //u_proj * (a_position + vec4(pos.xyz * (dst - 1.0), 0.0)); + v_height = clamp((snoise(vec4(a_position.xyz, u_time + u_seed*2.0) / u_scale) + 0.7) / 2.0, 0.0, 1.0); + gl_Position = u_proj * u_trans * a_position; } \ No newline at end of file