Allow albedo over 1 if supported

src/graphics/graphics-library/texture/color-texture.ts

@@ -1,4 +1,5 @@
 import { vec2 } from 'gl-matrix';
+import { tryEnableExtension } from '../helper/enable-extension';
 import { UniversalRenderingContext } from '../universal-rendering-context';
 import { Texture } from './texture';
 import { FilteringOptions } from './texture-options';
@@ -7,24 +8,31 @@ import { FilteringOptions } from './texture-options';
 export class ColorTexture extends Texture {
   public static readonly textureUnitId = 0;
 
+  private floatEnabled = false;
+
   constructor(gl: UniversalRenderingContext) {
     super(gl, ColorTexture.textureUnitId, {
       minFilter: FilteringOptions.LINEAR,
       maxFilter: FilteringOptions.LINEAR,
     });
+
+    const bufferFloatExtension = tryEnableExtension(gl, 'EXT_color_buffer_float');
+    const floatLinearExtension = tryEnableExtension(gl, 'OES_texture_float_linear');
+    this.floatEnabled = gl.isWebGL2 && !!bufferFloatExtension && !!floatLinearExtension;
   }
 
   public setSize(size: vec2) {
     this.bind();
+    const gl2 = this.gl as WebGL2RenderingContext;
     this.gl.texImage2D(
       this.gl.TEXTURE_2D,
       0,
-      this.gl.RGBA,
+      this.floatEnabled ? gl2.RGBA16F : this.gl.RGBA,
       size.x,
       size.y,
       0,
       this.gl.RGBA,
-      this.gl.UNSIGNED_BYTE,
+      this.floatEnabled ? gl2.HALF_FLOAT : this.gl.UNSIGNED_BYTE,
       null
     );
   }