From 5e936b96549395b42a949eeb1adff03ff38269fc Mon Sep 17 00:00:00 2001
From: schmelczerandras <schmelczer.andras@simonyi.bme.hu>
Date: Wed, 14 Oct 2020 15:18:13 +0200
Subject: [PATCH] Fix int and bool array loading

---
 .../graphics-library/helper/load-uniform.ts   | 27 ++++++++++++++++---
 1 file changed, 24 insertions(+), 3 deletions(-)

diff --git a/src/graphics/graphics-library/helper/load-uniform.ts b/src/graphics/graphics-library/helper/load-uniform.ts
index e0e34b9..5ac81b7 100644
--- a/src/graphics/graphics-library/helper/load-uniform.ts
+++ b/src/graphics/graphics-library/helper/load-uniform.ts
@@ -11,6 +11,30 @@ const converters: Map<
 > = new Map();
 converters.set(WebGLRenderingContext.SAMPLER_2D, (gl, v, l) => gl.uniform1i(l, v));
 
+converters.set(WebGLRenderingContext.INT, (gl, v: number | Array<number>, l) => {
+  if (v instanceof Array) {
+    if (v.length == 0) {
+      return;
+    }
+
+    gl.uniform1iv(l, new Int32Array(v));
+  } else {
+    gl.uniform1i(l, v);
+  }
+});
+
+converters.set(WebGLRenderingContext.BOOL, (gl, v: boolean | Array<boolean>, l) => {
+  if (v instanceof Array) {
+    if (v.length == 0) {
+      return;
+    }
+
+    gl.uniform1iv(l, new Int32Array(v.map((b) => +b)));
+  } else {
+    gl.uniform1i(l, +v);
+  }
+});
+
 converters.set(
   WebGLRenderingContext.FLOAT,
   (gl, v: number | Array<number> | Float32Array, l) => {
@@ -106,9 +130,6 @@ converters.set(WebGLRenderingContext.FLOAT_MAT3, (gl, v, l) => {
   }
 });
 
-converters.set(WebGLRenderingContext.BOOL, (gl, v: number, l) => gl.uniform1i(l, v));
-converters.set(WebGLRenderingContext.INT, (gl, v: number, l) => gl.uniform1i(l, v));
-
 /** @internal */
 export const loadUniform = (
   gl: UniversalRenderingContext,