diff options
Diffstat (limited to 'source/blender/gpu/intern/gpu_shader_material.glsl')
-rw-r--r-- | source/blender/gpu/intern/gpu_shader_material.glsl | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/source/blender/gpu/intern/gpu_shader_material.glsl b/source/blender/gpu/intern/gpu_shader_material.glsl index 0aae6d84a01..815b74a1bf4 100644 --- a/source/blender/gpu/intern/gpu_shader_material.glsl +++ b/source/blender/gpu/intern/gpu_shader_material.glsl @@ -1229,14 +1229,14 @@ void mtex_bump_tap5( vec3 texco, sampler2D ima, float hScale, void mtex_bump_deriv( vec3 texco, sampler2D ima, float ima_x, float ima_y, float hScale, out float dBs, out float dBt ) { - float s = 1; // negate this if flipped texture coordinate + float s = 1.0; // negate this if flipped texture coordinate vec2 TexDx = dFdx(texco.xy); vec2 TexDy = dFdy(texco.xy); // this variant using a derivative map is described here // http://mmikkelsen3d.blogspot.com/2011/07/derivative-maps.html vec2 dim = vec2(ima_x, ima_y); - vec2 dBduv = hScale*dim*(2*texture2D(ima, texco.xy).xy-1); + vec2 dBduv = hScale*dim*(2.0*texture2D(ima, texco.xy).xy-1.0); dBs = dBduv.x*TexDx.x + s*dBduv.y*TexDx.y; dBt = dBduv.x*TexDy.x + s*dBduv.y*TexDy.y; |