Issue #872: Fix float overflow in plasma transition shader

kblaschke · kblaschke · commit 0227b7a61d26 · 2025-02-28T11:37:39.000+01:00
diff --git a/src/libprojectM/Renderer/TransitionShaders/TransitionShaderBuiltInPlasmaGlsl330.frag b/src/libprojectM/Renderer/TransitionShaders/TransitionShaderBuiltInPlasmaGlsl330.frag
@@ -3,7 +3,7 @@
 
 float sinNoise(vec2 uv)
 {
-    return fract(abs(sin(uv.x * 180.0 + uv.y * 3077.0) * (float(iRandStatic.x) * .001)));
+    return fract(abs(sin(uv.x * 0.018 + uv.y * 0.3077) * (float(iRandStatic.x) * .001)));
 }
 
 float valueNoise(vec2 uv, float scale)

Original file line number	Diff line number	Diff line change
`@@ -3,7 +3,7 @@`
`3`	`3`
`4`	`4`	`float sinNoise(vec2 uv)`
`5`	`5`	`{`
`6`		`- return fract(abs(sin(uv.x * 180.0 + uv.y * 3077.0) * (float(iRandStatic.x) * .001)));`
	`6`	`+ return fract(abs(sin(uv.x * 0.018 + uv.y * 0.3077) * (float(iRandStatic.x) * .001)));`
`7`	`7`	`}`
`8`	`8`
`9`	`9`	`float valueNoise(vec2 uv, float scale)`