diff options
author | Mai Lavelle <mai.lavelle@gmail.com> | 2016-07-02 00:36:27 +0300 |
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committer | Mai Lavelle <mai.lavelle@gmail.com> | 2016-08-06 06:49:21 +0300 |
commit | cd809b95d828677468298f1eba54fc52bbb9db60 (patch) | |
tree | eb6830d04eb2388f8fa0c7a34f65ee5448e0ec87 /intern/cycles/kernel/geom/geom_curve.h | |
parent | 734e0aca3872410dcaaf351e091a49a8d6186de2 (diff) |
Cycles: Add AttributeDescriptor
Adds a descriptor for attributes that can easily be passed around and extended
to contain more data. Will be used for attributes on subdivision meshes.
Reviewed By: brecht
Differential Revision: https://developer.blender.org/D2110
Diffstat (limited to 'intern/cycles/kernel/geom/geom_curve.h')
-rw-r--r-- | intern/cycles/kernel/geom/geom_curve.h | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/intern/cycles/kernel/geom/geom_curve.h b/intern/cycles/kernel/geom/geom_curve.h index 292e1bfca0e..aa9cd295452 100644 --- a/intern/cycles/kernel/geom/geom_curve.h +++ b/intern/cycles/kernel/geom/geom_curve.h @@ -24,23 +24,23 @@ CCL_NAMESPACE_BEGIN /* Reading attributes on various curve elements */ -ccl_device float curve_attribute_float(KernelGlobals *kg, const ShaderData *sd, AttributeElement elem, int offset, float *dx, float *dy) +ccl_device float curve_attribute_float(KernelGlobals *kg, const ShaderData *sd, const AttributeDescriptor desc, float *dx, float *dy) { - if(elem == ATTR_ELEMENT_CURVE) { + if(desc.element == ATTR_ELEMENT_CURVE) { #ifdef __RAY_DIFFERENTIALS__ if(dx) *dx = 0.0f; if(dy) *dy = 0.0f; #endif - return kernel_tex_fetch(__attributes_float, offset + ccl_fetch(sd, prim)); + return kernel_tex_fetch(__attributes_float, desc.offset + ccl_fetch(sd, prim)); } - else if(elem == ATTR_ELEMENT_CURVE_KEY || elem == ATTR_ELEMENT_CURVE_KEY_MOTION) { + else if(desc.element == ATTR_ELEMENT_CURVE_KEY || desc.element == ATTR_ELEMENT_CURVE_KEY_MOTION) { float4 curvedata = kernel_tex_fetch(__curves, ccl_fetch(sd, prim)); int k0 = __float_as_int(curvedata.x) + PRIMITIVE_UNPACK_SEGMENT(ccl_fetch(sd, type)); int k1 = k0 + 1; - float f0 = kernel_tex_fetch(__attributes_float, offset + k0); - float f1 = kernel_tex_fetch(__attributes_float, offset + k1); + float f0 = kernel_tex_fetch(__attributes_float, desc.offset + k0); + float f1 = kernel_tex_fetch(__attributes_float, desc.offset + k1); #ifdef __RAY_DIFFERENTIALS__ if(dx) *dx = ccl_fetch(sd, du).dx*(f1 - f0); @@ -59,9 +59,9 @@ ccl_device float curve_attribute_float(KernelGlobals *kg, const ShaderData *sd, } } -ccl_device float3 curve_attribute_float3(KernelGlobals *kg, const ShaderData *sd, AttributeElement elem, int offset, float3 *dx, float3 *dy) +ccl_device float3 curve_attribute_float3(KernelGlobals *kg, const ShaderData *sd, const AttributeDescriptor desc, float3 *dx, float3 *dy) { - if(elem == ATTR_ELEMENT_CURVE) { + if(desc.element == ATTR_ELEMENT_CURVE) { /* idea: we can't derive any useful differentials here, but for tiled * mipmap image caching it would be useful to avoid reading the highest * detail level always. maybe a derivative based on the hair density @@ -71,15 +71,15 @@ ccl_device float3 curve_attribute_float3(KernelGlobals *kg, const ShaderData *sd if(dy) *dy = make_float3(0.0f, 0.0f, 0.0f); #endif - return float4_to_float3(kernel_tex_fetch(__attributes_float3, offset + ccl_fetch(sd, prim))); + return float4_to_float3(kernel_tex_fetch(__attributes_float3, desc.offset + ccl_fetch(sd, prim))); } - else if(elem == ATTR_ELEMENT_CURVE_KEY || elem == ATTR_ELEMENT_CURVE_KEY_MOTION) { + else if(desc.element == ATTR_ELEMENT_CURVE_KEY || desc.element == ATTR_ELEMENT_CURVE_KEY_MOTION) { float4 curvedata = kernel_tex_fetch(__curves, ccl_fetch(sd, prim)); int k0 = __float_as_int(curvedata.x) + PRIMITIVE_UNPACK_SEGMENT(ccl_fetch(sd, type)); int k1 = k0 + 1; - float3 f0 = float4_to_float3(kernel_tex_fetch(__attributes_float3, offset + k0)); - float3 f1 = float4_to_float3(kernel_tex_fetch(__attributes_float3, offset + k1)); + float3 f0 = float4_to_float3(kernel_tex_fetch(__attributes_float3, desc.offset + k0)); + float3 f1 = float4_to_float3(kernel_tex_fetch(__attributes_float3, desc.offset + k1)); #ifdef __RAY_DIFFERENTIALS__ if(dx) *dx = ccl_fetch(sd, du).dx*(f1 - f0); |