Moderator: JimStar
Thank you for the info!TBFX wrote:Q-Games wrote:I have a question: in the standalone version you can specify the focus point by
In an IPR active render you can use the render region to select the focus point. It will set focus to the center of the area you swipe out.
T.
I have not been using version 3.0 of the plugin as it's too broken just yet but on my initial tests with it the diffuse and glossy materials were both working as expected, haven't tried a specular in that version. I'll give it a go when I next get a chance.Q-Games wrote:How about the broken specular material? Am I the only one having this problem?
That's right, mentalray for Maya doesn't let you set a shader for a particular instance. You typically have to deinstance the particle-geometries. Ideally, Maya would translate a "particleSamplerInfo" nodes' outRGB attribute to mesh shaders. particleSamplerInfo does work for software-rendered particles--i.e., the way you color a software rendered particle is by connecting a particleSamplerInfo outRGB attribute to an attribute on a particleCloud node. However, if you connected the same particleSamplerInfo to say, a blinn or mia_material node's diffuse attr., and then applied that mesh shader to the parent (instanced) mesh, the instanced meshes would not be colored per particle.JimStar wrote: Do you mean that MentalRay can't have the own shader for each particle?.. Only for object itself?..
Code: Select all
If the shader is applied to an instancer node:
....If the shader has any connections downstream from a particleSamplerInfo node:
........For each instanced mesh:
............Set up a Octane proxy object
............Compute the particleSamplerInfo node using the particle that corresponds to the instanced mesh
............Shade with the graph, substituting the computed particleSamplerInfoSadly not in Maya.face wrote:MentalRay can change the shader by a particle attribute, also the color of each particle.JimStar wrote:Do you mean that MentalRay can't have the own shader for each particle?.. Only for object itself?..
At least with Softimage, should be also possible with Maya...
face
But I see that I can set the shader to the particle itself in Maya, not only to the object... Maya does not have the standard API means to get the material of the particle when iterating particles and particle's instances, but it can be done during the attributes connections... And in this case I can bind own Octane material to each particle...doctorpangloss wrote:Sadly not in Maya.face wrote:MentalRay can change the shader by a particle attribute, also the color of each particle.JimStar wrote:Do you mean that MentalRay can't have the own shader for each particle?.. Only for object itself?..
At least with Softimage, should be also possible with Maya...
face
Yes, as I understand it in Maya you can set per particle RGB values and shaders but the particle instancer node gives us no access to the indivudual instances at the shader level, though as I'm not hugely experienced with particles in Maya there could be a way I'm unfamiliar with. The way I've delt with it in the past is to have more than one base object, one each for every shader variation I need, and then use the instancer multi object controls to distribute them. Not as efficient as you require more than one base object just for shader variation.JimStar wrote:But I see that I can set the shader to the particle itself in Maya, not only to the object... Maya does not have the standard API means to get the material of the particle when iterating particles and particle's instances, but it can be done during the attributes connections... And in this case I can bind own Octane material to each particle...Is that what you mean?..
