summaryrefslogtreecommitdiffstatshomepage
path: root/3rdparty/bgfx/examples/06-bump/vs_bump_instanced.sc
diff options
context:
space:
mode:
Diffstat (limited to '3rdparty/bgfx/examples/06-bump/vs_bump_instanced.sc')
-rw-r--r--3rdparty/bgfx/examples/06-bump/vs_bump_instanced.sc19
1 files changed, 8 insertions, 11 deletions
diff --git a/3rdparty/bgfx/examples/06-bump/vs_bump_instanced.sc b/3rdparty/bgfx/examples/06-bump/vs_bump_instanced.sc
index 24c509732b7..31929c4b648 100644
--- a/3rdparty/bgfx/examples/06-bump/vs_bump_instanced.sc
+++ b/3rdparty/bgfx/examples/06-bump/vs_bump_instanced.sc
@@ -2,7 +2,7 @@ $input a_position, a_normal, a_tangent, a_texcoord0, i_data0, i_data1, i_data2,
$output v_wpos, v_view, v_normal, v_tangent, v_bitangent, v_texcoord0
/*
- * Copyright 2011-2018 Branimir Karadzic. All rights reserved.
+ * Copyright 2011-2019 Branimir Karadzic. All rights reserved.
* License: https://github.com/bkaradzic/bgfx#license-bsd-2-clause
*/
@@ -25,19 +25,16 @@ void main()
vec4 tangent = a_tangent * 2.0 - 1.0;
vec3 wtangent = instMul(model, vec4(tangent.xyz, 0.0) ).xyz;
- vec3 viewNormal = normalize(mul(u_view, vec4(wnormal, 0.0) ).xyz);
- vec3 viewTangent = normalize(mul(u_view, vec4(wtangent, 0.0) ).xyz);
- vec3 viewBitangent = cross(viewNormal, viewTangent) * tangent.w;
- mat3 tbn = mat3(viewTangent, viewBitangent, viewNormal);
+ v_normal = wnormal;
+ v_tangent = wtangent;
+ v_bitangent = cross(v_normal, v_tangent) * tangent.w;
- v_wpos = wpos;
+ mat3 tbn = mat3(v_tangent, v_bitangent, v_normal);
- vec3 view = mul(u_view, vec4(wpos, 0.0) ).xyz;
- v_view = instMul(view, tbn);
+ v_wpos = wpos;
- v_normal = viewNormal;
- v_tangent = viewTangent;
- v_bitangent = viewBitangent;
+ vec3 weyepos = mul(vec4(0.0, 0.0, 0.0, 1.0), u_view).xyz;
+ v_view = instMul(weyepos - wpos, tbn);
v_texcoord0 = a_texcoord0;
}