diff options
| author | Brecht Van Lommel <brechtvanlommel@gmail.com> | 2018-02-14 19:02:28 +0300 |
|---|---|---|
| committer | Brecht Van Lommel <brechtvanlommel@gmail.com> | 2018-02-14 23:45:57 +0300 |
| commit | b5fe00d1ac43c16ec8f74d3ad7689599dfb2ef00 (patch) | |
| tree | e2dcae056cde3c6eaa3bcaf2c1b9117a0a5e87a1 /intern/cycles/render | |
| parent | f6107af4cf4d907495e2e9c18e5866fd1d420650 (diff) | |
Cycles: restore Particle Info Index for now, keep it next to Random.
It seems to be useful still in cases where the particle are distributed in
a particular order or pattern, to colorize them along with that. This isn't
really well defined, but might as well avoid breaking backwards compatibility
for now.
Diffstat (limited to 'intern/cycles/render')
| -rw-r--r-- | intern/cycles/render/nodes.cpp | 8 | ||||
| -rw-r--r-- | intern/cycles/render/particles.cpp | 3 |
2 files changed, 9 insertions, 2 deletions
diff --git a/intern/cycles/render/nodes.cpp b/intern/cycles/render/nodes.cpp index 44c807065e4..48613a9324c 100644 --- a/intern/cycles/render/nodes.cpp +++ b/intern/cycles/render/nodes.cpp @@ -3463,6 +3463,7 @@ NODE_DEFINE(ParticleInfoNode) { NodeType* type = NodeType::add("particle_info", create, NodeType::SHADER); + SOCKET_OUT_FLOAT(random, "Index"); SOCKET_OUT_FLOAT(random, "Random"); SOCKET_OUT_FLOAT(age, "Age"); SOCKET_OUT_FLOAT(lifetime, "Lifetime"); @@ -3484,6 +3485,8 @@ ParticleInfoNode::ParticleInfoNode() void ParticleInfoNode::attributes(Shader *shader, AttributeRequestSet *attributes) { + if(!output("Index")->links.empty()) + attributes->add(ATTR_STD_PARTICLE); if(!output("Random")->links.empty()) attributes->add(ATTR_STD_PARTICLE); if(!output("Age")->links.empty()) @@ -3510,6 +3513,11 @@ void ParticleInfoNode::compile(SVMCompiler& compiler) { ShaderOutput *out; + out = output("Index"); + if(!out->links.empty()) { + compiler.add_node(NODE_PARTICLE_INFO, NODE_INFO_PAR_INDEX, compiler.stack_assign(out)); + } + out = output("Random"); if(!out->links.empty()) { compiler.add_node(NODE_PARTICLE_INFO, NODE_INFO_PAR_RANDOM, compiler.stack_assign(out)); diff --git a/intern/cycles/render/particles.cpp b/intern/cycles/render/particles.cpp index 07e246a092a..3ee620c9d01 100644 --- a/intern/cycles/render/particles.cpp +++ b/intern/cycles/render/particles.cpp @@ -80,8 +80,7 @@ void ParticleSystemManager::device_update_particles(Device *, DeviceScene *dscen Particle& pa = psys->particles[k]; int offset = i*PARTICLE_SIZE; - float random = hash_int_01(pa.index); - particles[offset] = make_float4(random, pa.age, pa.lifetime, pa.size); + particles[offset] = make_float4(__uint_as_float(pa.index), pa.age, pa.lifetime, pa.size); particles[offset+1] = pa.rotation; particles[offset+2] = make_float4(pa.location.x, pa.location.y, pa.location.z, pa.velocity.x); particles[offset+3] = make_float4(pa.velocity.y, pa.velocity.z, pa.angular_velocity.x, pa.angular_velocity.y); |