diff options
| author | Thomas Dinges <blender@dingto.org> | 2014-06-13 23:27:21 +0400 |
|---|---|---|
| committer | Thomas Dinges <blender@dingto.org> | 2014-06-13 23:59:13 +0400 |
| commit | 49df707496e505c8a8b21c1ea36b479e950cc66c (patch) | |
| tree | 29ad1b81a9cc9cbb020d114772319171500fab61 /intern/cycles/kernel/kernel_shader.h | |
| parent | cd5e1ff74e4f6443f3e4b836dd23fe46b56cb7ed (diff) | |
Cycles: Calculate face normal on the fly.
Instead of pre-calculation and storage, we now calculate the face normal during render.
This gives a small slowdown (~1%) but decreases memory usage, which is especially important for GPUs,
where you have limited VRAM.
Part of my GSoC 2014.
Diffstat (limited to 'intern/cycles/kernel/kernel_shader.h')
| -rw-r--r-- | intern/cycles/kernel/kernel_shader.h | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/intern/cycles/kernel/kernel_shader.h b/intern/cycles/kernel/kernel_shader.h index c6a7f9f1570..0ea21a85fcb 100644 --- a/intern/cycles/kernel/kernel_shader.h +++ b/intern/cycles/kernel/kernel_shader.h @@ -86,9 +86,8 @@ ccl_device void shader_setup_from_ray(KernelGlobals *kg, ShaderData *sd, #endif if(sd->type & PRIMITIVE_TRIANGLE) { /* static triangle */ - float4 Ns = kernel_tex_fetch(__tri_normal, sd->prim); - float3 Ng = make_float3(Ns.x, Ns.y, Ns.z); - sd->shader = __float_as_int(Ns.w); + float3 Ng = triangle_normal(kg, sd->prim); + sd->shader = __float_as_int(kernel_tex_fetch(__tri_shader, sd->prim)); /* vectors */ sd->P = triangle_refine(kg, sd, isect, ray); @@ -166,9 +165,8 @@ ccl_device_inline void shader_setup_from_subsurface(KernelGlobals *kg, ShaderDat /* fetch triangle data */ if(sd->type == PRIMITIVE_TRIANGLE) { - float4 Ns = kernel_tex_fetch(__tri_normal, sd->prim); - float3 Ng = make_float3(Ns.x, Ns.y, Ns.z); - sd->shader = __float_as_int(Ns.w); + float3 Ng = triangle_normal(kg, sd->prim); + sd->shader = __float_as_int(kernel_tex_fetch(__tri_shader, sd->prim)); /* static triangle */ sd->P = triangle_refine_subsurface(kg, sd, isect, ray); @@ -1028,8 +1026,7 @@ ccl_device bool shader_transparent_shadow(KernelGlobals *kg, Intersection *isect #ifdef __HAIR__ if(kernel_tex_fetch(__prim_type, isect->prim) & PRIMITIVE_ALL_TRIANGLE) { #endif - float4 Ns = kernel_tex_fetch(__tri_normal, prim); - shader = __float_as_int(Ns.w); + shader = __float_as_int(kernel_tex_fetch(__tri_shader, prim)); #ifdef __HAIR__ } else { |