From cd809b95d828677468298f1eba54fc52bbb9db60 Mon Sep 17 00:00:00 2001 From: Mai Lavelle Date: Fri, 1 Jul 2016 17:36:27 -0400 Subject: 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 --- intern/cycles/kernel/geom/geom_curve.h | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) (limited to 'intern/cycles/kernel/geom/geom_curve.h') 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); -- cgit v1.2.3