From fbb7f0a6a15d5aeada6c7254c9c45251ae579a9a Mon Sep 17 00:00:00 2001
From: Alexander Rose <alexander.rose@weirdbyte.de>
Date: Wed, 22 Jan 2020 17:54:56 -0800
Subject: [PATCH] fix glsl300 frag shader prefix
---
src/mol-gl/shader-code.ts | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/src/mol-gl/shader-code.ts b/src/mol-gl/shader-code.ts
index e140b26d8..850e8596c 100644
--- a/src/mol-gl/shader-code.ts
+++ b/src/mol-gl/shader-code.ts
@@ -201,13 +201,17 @@ const glsl300FragPrefixCommon = `
#define gl_FragColor out_FragData0
#define gl_FragDepthEXT gl_FragDepth
-#define enabledStandardDerivatives
-#define enabledFragDepth
#define requiredDrawBuffers
`
function getGlsl300FragPrefix(gl: WebGL2RenderingContext, extensions: WebGLExtensions, shaderExtensions: ShaderExtensions) {
const prefix = [ '#version 300 es' ]
+ if (shaderExtensions.standardDerivatives) {
+ prefix.push('#define enabledStandardDerivatives')
+ }
+ if (shaderExtensions.fragDepth) {
+ prefix.push('#define enabledFragDepth')
+ }
if (extensions.drawBuffers) {
const maxDrawBuffers = gl.getParameter(gl.MAX_DRAW_BUFFERS) as number
for (let i = 0, il = maxDrawBuffers; i < il; ++i) {
--
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