Merge pull request #291 from overte-org/fix/nvidia-driver

Quick workaround for Nvidia driver bug

.gitignore

@@ -12,6 +12,7 @@ CMakeFiles/
 CMakeScripts/
 cmake_install.cmake
 build*/
+cmake-build-relwithdebinfo-visual-studio/
 release*/
 debug*/
 gprof*/

libraries/entities-renderer/src/paintStroke.slv

@@ -48,7 +48,10 @@ void main(void) {
         vec3 normalEye = normalize(posEye.xyz);
 
         vec3 binormalEye = normalize(cross(normalEye, tangentEye));
-        posEye.xyz += _distanceFromCenter * vertex.binormalAndHalfWidth.w * binormalEye;
+        // Workaround for Nvidia driver bug
+        posEye.x += _distanceFromCenter * vertex.binormalAndHalfWidth.w * binormalEye.x;
+        posEye.y += _distanceFromCenter * vertex.binormalAndHalfWidth.w * binormalEye.y;
+        posEye.z += _distanceFromCenter * vertex.binormalAndHalfWidth.w * binormalEye.z;
         <$transformEyeToClipPos(cam, posEye, gl_Position)$>
 <@if not HIFI_USE_FORWARD@>
         <$transformEyeToWorldDir(cam, normalEye, _normalWS)$>

libraries/render-utils/src/drawWorkloadProxy.slv

@@ -51,7 +51,12 @@ void main(void) {
     vec3 dirX = normalize(cross(vec3(0.0, 1.0, 0.0), dirZ));
     vec3 dirY = vec3(0.0, 1.0, 0.0);
 
-    vec4 pos = vec4(proxyPosEye.xyz + proxy.sphere.w * ( dirX * spriteVert.x + dirY * spriteVert.y /* + dirZ * spriteVert.z*/), 1.0);
+    //vec4 pos = vec4(proxyPosEye.xyz + proxy.sphere.w * ( dirX * spriteVert.x + dirY * spriteVert.y + dirZ * spriteVert.z), 1.0);
+    //Nvidia driver workaround
+    vec4 pos = vec4(1.0, 1.0, 1.0, 1.0);
+    pos.x = proxyPosEye.x + proxy.sphere.w * ( dirX.x * spriteVert.x + dirY.x * spriteVert.y + dirZ.x * spriteVert.z);
+    pos.y = proxyPosEye.y + proxy.sphere.w * ( dirX.y * spriteVert.x + dirY.y * spriteVert.y + dirZ.y * spriteVert.z);
+    pos.z = proxyPosEye.z + proxy.sphere.w * ( dirX.z * spriteVert.x + dirY.z * spriteVert.y + dirZ.z * spriteVert.z);
     varEyePos = pos.xyz;
     varTexcoord = spriteVert.xyz;
     <$transformEyeToClipPos(cam, pos, gl_Position)$>